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linux/tools/perf/builtin-trace.c

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perf trace: Add header with copyright and background info Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5yqtfs728r1j1u8zmg8ufxwm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-28 12:02:37 -03:00
perf tools: Use default include path notation for libtraceevent headers Header files of libtraceevent or no longer local headers. Thus, use default path notation for them. Also removing extra traceevent include path and instead handle this similar to liblk. Signed-off-by: Robert Richter <robert.richter@linaro.org> Signed-off-by: Robert Richter <rric@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Robert Richter <rric@kernel.org> Link: http://lkml.kernel.org/r/1370964558-8599-1-git-send-email-rric@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-06-11 17:29:18 +02:00
tools lib api fs: Move debugfs__strerror_open into tracing_path.c object Moving debugfs__strerror_open out of api/fs/debugfs.c, because it's not debugfs specific. It'll be changed to consider tracefs mount as well in following patches. Renaming it into tracing_path__strerror_open_tp to fit into the namespace. No functional change is intended. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: Matt Fleming <matt.fleming@intel.com> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1441180605-24737-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-02 09:56:35 +02:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add --verbose option Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ain6q4u8g3bpnh18yhw24v2x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-22 16:49:54 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Support 'strace' syscall event groups I.e.: $ cat ~/share/perf-core/strace/groups/file access chmod creat execve faccessat getcwd lstat mkdir open openat quotactl readlink rename rmdir stat statfs symlink unlink $ Then, on a quiet desktop, try running this and then moving your mouse to see the deluge of mouse related activity: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # # trace --ev probe:vfs_getname --filter-pids 2232 -e file 0.042 (0.042 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.042 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/xterm") 0.100 (0.100 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.142 (0.018 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.142 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/index.theme") 0.192 (0.069 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.230 (0.017 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.230 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/usr/share/icons/Adwaita/cursors/xterm") 0.253 (0.041 ms): mousetweaks/2235 ... [continued]: open()) = 14 0.459 (0.008 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.459 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/left_side") 0.468 (0.017 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory Need to combine that raw_syscalls:sys_enter(open) + probe:vfs_getname + raw_syscalls:sys_exit(open) sequence... Now, if you're bored, please write some more syscall groups, like the ones in 'strace' and send it our way :-) Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a42xklu59lcbxp7bbnic74a8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-20 12:02:09 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Honor target pid / tid options when analyzing a file Allows capture of raw_syscall events for all processes or threads in a task and then analyzing specific ones. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:53 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf tools: Add trace-event global object for tracepoint interface In order to get the proper plugins processing we need to use full trace-event interface when creating tracepoint events. So far we were using shortcut to get the parsed format. Moving current 'event_format__new' function into trace-event object as 'trace_event__tp_format'. This function uses properly initialized global trace-event object, ensuring proper plugins processing. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1386076182-14484-11-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-03 14:09:24 +01:00
perf trace: Add support for syscalls vs raw_syscalls Older kernels (e.g., RHEL6) do system call tracing via syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to detect lack of raw_syscalls support and try syscalls. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:39 -07:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add beautifier for mmap prot parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 17:44:42 -03:00
perf trace: Add beautifier for futex 'operation' parm That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 13:46:44 -03:00
perf evsel: Propagate error info from tp_format Propagate error info from tp_format via ERR_PTR to get it all the way down to the parse-event.c tracepoint adding routines. Following functions now return pointer with encoded error: - tp_format - trace_event__tp_format - perf_evsel__newtp_idx - perf_evsel__newtp This affects several other places in perf, that cannot use pointer check anymore, but must utilize the err.h interface, when getting error information from above functions list. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Link: http://lkml.kernel.org/r/1441615087-13886-5-git-send-email-jolsa@kernel.org [ Add two missing ERR_PTR() and one IS_ERR() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-07 10:38:06 +02:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf tools: Fill in new definitions for madvise()/mmap() flags builtin-trace.c started using various new syscall features not defined in the header files of older distros - resulting in build failures. Fill in the (ABI) constants if they are not defined. (There might be a better place to put this than builtin-trace.c, into a compat header or so.) Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-tip-commits@vger.kernel.org Link: http://lkml.kernel.org/r/20130912132900.GE23826@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 15:29:00 +02:00
perf trace: Add header with copyright and background info Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5yqtfs728r1j1u8zmg8ufxwm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-28 12:02:37 -03:00
perf tools: Fill in new definitions for madvise()/mmap() flags builtin-trace.c started using various new syscall features not defined in the header files of older distros - resulting in build failures. Fill in the (ABI) constants if they are not defined. (There might be a better place to put this than builtin-trace.c, into a compat header or so.) Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-tip-commits@vger.kernel.org Link: http://lkml.kernel.org/r/20130912132900.GE23826@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 15:29:00 +02:00
perf trace: Add fallback definition of EFD_SEMAPHORE glibc 2.17 is missing this on sparc, despite the fact that it's not architecture-specific. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Fixes: 49af9e93adfa ('perf trace: Beautify eventfd2 'flags' arg') Cc: <stable@vger.kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1391648435.3003.100.camel@deadeye.wl.decadent.org.uk Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-06 01:00:35 +00:00
perf trace: Fix the build on older distros Such as RHEL5, where CLOEXEC, NONBLOCK flags are not present, use a ifdef+define approach instead to make it build on all distros. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Vinson Lee <vlee@twitter.com> Link: http://lkml.kernel.org/n/tip-pioazikk9d9oz5qdeor3eldu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-14 17:39:03 -03:00
trace: Beautify perf_event_open syscall Syswide tracing and then running 'stat' and 'trace': $ perf trace -e perf_event_open 1034.649 (0.019 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = -1 EINVAL Invalid argument 1034.670 (0.008 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.681 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.692 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 9986.983 (0.014 ms): trace/6139 perf_event_open(attr_uptr: 0x7ffd9c629320, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.026 (0.016 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.041 (0.008 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.489 (0.092 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.536 (0.044 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 4 9987.580 (0.041 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 5 9987.620 (0.037 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 7 9987.659 (0.035 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 8 9987.692 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 9 9987.727 (0.032 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 10 9987.761 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 11 Need to intercept perf_copy_attr() with a kprobe or with eBPF... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-njb105hab2i3t5dexym9lskl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-11 22:47:54 -03:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf tools: Introduce zfree For the frequent idiom of: free(ptr); ptr = NULL; Make it expect a pointer to the pointer being freed, so that it becomes clear at first sight that the variable being freed is being modified. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-pfw02ezuab37kha18wlut7ir@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-26 17:41:15 -03:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf trace: Separate tp syscall field caching into init routine to be reused We need to set this in evsels coming out of a perf.data file header, not just for new ones created for live sessions. So separate the code that caches the syscall entry/exit tracepoint format fields into a new function that will be used in the next changeset. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112115700.GC4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 08:51:45 -03:00
perf tools: Introduce zfree For the frequent idiom of: free(ptr); ptr = NULL; Make it expect a pointer to the pointer being freed, so that it becomes clear at first sight that the variable being freed is being modified. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-pfw02ezuab37kha18wlut7ir@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-26 17:41:15 -03:00
perf trace: Separate tp syscall field caching into init routine to be reused We need to set this in evsels coming out of a perf.data file header, not just for new ones created for live sessions. So separate the code that caches the syscall entry/exit tracepoint format fields into a new function that will be used in the next changeset. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112115700.GC4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 08:51:45 -03:00
perf evsel: Remove idx parm from constructor Most uses of the evsel constructor are followed by a call to perf_evlist__add with an idex of evlist->nr_entries, so make rename the current constructor to perf_evsel__new_idx and remove the need for passing the constructor for the common case. We still need the new_idx variant because the way groups are handled, with evsel->nr_members holding the number of entries in an evlist, partitioning the evlist into sublists inside a single linked list. This asks for a clarifying refactoring, but for now simplify the non parser cases, so that tool writers don't have to bother with evsel idx setting. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zy9tskx6jqm2rmw7468zze2a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-07 16:41:19 -03:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf evsel: Remove idx parm from constructor Most uses of the evsel constructor are followed by a call to perf_evlist__add with an idex of evlist->nr_entries, so make rename the current constructor to perf_evsel__new_idx and remove the need for passing the constructor for the common case. We still need the new_idx variant because the way groups are handled, with evsel->nr_members holding the number of entries in an evlist, partitioning the evlist into sublists inside a single linked list. This asks for a clarifying refactoring, but for now simplify the non parser cases, so that tool writers don't have to bother with evsel idx setting. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zy9tskx6jqm2rmw7468zze2a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-07 16:41:19 -03:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf trace: Add support for syscalls vs raw_syscalls Older kernels (e.g., RHEL6) do system call tracing via syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to detect lack of raw_syscalls support and try syscalls. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:39 -07:00
perf evsel: Propagate error info from tp_format Propagate error info from tp_format via ERR_PTR to get it all the way down to the parse-event.c tracepoint adding routines. Following functions now return pointer with encoded error: - tp_format - trace_event__tp_format - perf_evsel__newtp_idx - perf_evsel__newtp This affects several other places in perf, that cannot use pointer check anymore, but must utilize the err.h interface, when getting error information from above functions list. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Link: http://lkml.kernel.org/r/1441615087-13886-5-git-send-email-jolsa@kernel.org [ Add two missing ERR_PTR() and one IS_ERR() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-07 10:38:06 +02:00
perf trace: Add support for syscalls vs raw_syscalls Older kernels (e.g., RHEL6) do system call tracing via syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to detect lack of raw_syscalls support and try syscalls. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:39 -07:00
perf evsel: Propagate error info from tp_format Propagate error info from tp_format via ERR_PTR to get it all the way down to the parse-event.c tracepoint adding routines. Following functions now return pointer with encoded error: - tp_format - trace_event__tp_format - perf_evsel__newtp_idx - perf_evsel__newtp This affects several other places in perf, that cannot use pointer check anymore, but must utilize the err.h interface, when getting error information from above functions list. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Link: http://lkml.kernel.org/r/1441615087-13886-5-git-send-email-jolsa@kernel.org [ Add two missing ERR_PTR() and one IS_ERR() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-07 10:38:06 +02:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Allow specifying index offset in strarrays So that the index passed doesn't have to start at zero, being decremented from an offset specified when declaring the strarray before being used as the real array index. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-k1ce6uqyt4qar9edrj3mevod@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 16:00:21 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Allow specifying index offset in strarrays So that the index passed doesn't have to start at zero, being decremented from an offset specified when declaring the strarray before being used as the real array index. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-k1ce6uqyt4qar9edrj3mevod@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 16:00:21 -03:00
perf trace: Prepare the strarray scnprintf method for reuse Right now when an index passed to that method has no string associated it'll print the index as a decimal number, prepare it so that we can use it to print it in hex as well, for ioctls, for instance. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-nsvy06sqj64qvnkmzvwxsx2v@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:17:43 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Allow specifying index offset in strarrays So that the index passed doesn't have to start at zero, being decremented from an offset specified when declaring the strarray before being used as the real array index. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-k1ce6uqyt4qar9edrj3mevod@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 16:00:21 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Prepare the strarray scnprintf method for reuse Right now when an index passed to that method has no string associated it'll print the index as a decimal number, prepare it so that we can use it to print it in hex as well, for ioctls, for instance. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-nsvy06sqj64qvnkmzvwxsx2v@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:17:43 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Prepare the strarray scnprintf method for reuse Right now when an index passed to that method has no string associated it'll print the index as a decimal number, prepare it so that we can use it to print it in hex as well, for ioctls, for instance. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-nsvy06sqj64qvnkmzvwxsx2v@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:17:43 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Fix ioctl 'request' beautifier build problems on !(i386 || x86_64) arches Supporting decoding the ioctl 'request' parameter needs more work to properly support more architectures, the current approach doesn't work on at least powerpc and sparc, as reported by Ben Hutchings in http://lkml.kernel.org/r/1391593985.3003.48.camel@deadeye.wl.decadent.org.uk . Work around that by making it to be ifdefed for the architectures known to work with the current, limited approach, i386 and x86_64 till better code is written. Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ben Hutchings <ben@decadent.org.uk> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@vger.kernel.org> # 3.13 Fixes: 78645cf3ed32 ("perf trace: Initial beautifier for ioctl's 'cmd' arg") Link: http://lkml.kernel.org/n/tip-ss04k11insqlu329xh5g02q0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-10 14:09:48 -03:00
perf trace: Initial beautifier for ioctl's 'cmd' arg [root@zoo linux]# trace -e ioctl | grep -v "cmd: 0x" | head -10 0.386 ( 0.001 ms): trace/1602 ioctl(fd: 1<pipe:[127057]>, cmd: TCGETS, arg: 0x7fff59fcb4d0 ) = -1 ENOTTY Inappropriate ioctl for device 1459.368 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.586 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.611 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 3740.526 ( 0.002 ms): awk/1612 ioctl(fd: 1<pipe:[128265]>, cmd: TCGETS, arg: 0x7fff4d166b90 ) = -1 ENOTTY Inappropriate ioctl for device 3740.704 ( 0.001 ms): awk/1612 ioctl(fd: 3</proc/meminfo>, cmd: TCGETS, arg: 0x7fff4d1669a0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.550 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.555 ( 0.003 ms): ps/1614 ioctl(fd: 2<socket:[19550]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.558 ( 0.002 ms): ps/1614 ioctl(cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.572 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TCGETS, arg: 0x7fff59176220 ) = -1 ENOTTY Inappropriate ioctl for device [root@zoo linux]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-afajwap3mr60dfl4qpdl1pxn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:43:20 -03:00
perf trace: Fix ioctl 'request' beautifier build problems on !(i386 || x86_64) arches Supporting decoding the ioctl 'request' parameter needs more work to properly support more architectures, the current approach doesn't work on at least powerpc and sparc, as reported by Ben Hutchings in http://lkml.kernel.org/r/1391593985.3003.48.camel@deadeye.wl.decadent.org.uk . Work around that by making it to be ifdefed for the architectures known to work with the current, limited approach, i386 and x86_64 till better code is written. Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ben Hutchings <ben@decadent.org.uk> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@vger.kernel.org> # 3.13 Fixes: 78645cf3ed32 ("perf trace: Initial beautifier for ioctl's 'cmd' arg") Link: http://lkml.kernel.org/n/tip-ss04k11insqlu329xh5g02q0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-10 14:09:48 -03:00
perf trace: Initial beautifier for ioctl's 'cmd' arg [root@zoo linux]# trace -e ioctl | grep -v "cmd: 0x" | head -10 0.386 ( 0.001 ms): trace/1602 ioctl(fd: 1<pipe:[127057]>, cmd: TCGETS, arg: 0x7fff59fcb4d0 ) = -1 ENOTTY Inappropriate ioctl for device 1459.368 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.586 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.611 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 3740.526 ( 0.002 ms): awk/1612 ioctl(fd: 1<pipe:[128265]>, cmd: TCGETS, arg: 0x7fff4d166b90 ) = -1 ENOTTY Inappropriate ioctl for device 3740.704 ( 0.001 ms): awk/1612 ioctl(fd: 3</proc/meminfo>, cmd: TCGETS, arg: 0x7fff4d1669a0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.550 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.555 ( 0.003 ms): ps/1614 ioctl(fd: 2<socket:[19550]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.558 ( 0.002 ms): ps/1614 ioctl(cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.572 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TCGETS, arg: 0x7fff59176220 ) = -1 ENOTTY Inappropriate ioctl for device [root@zoo linux]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-afajwap3mr60dfl4qpdl1pxn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:43:20 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtjasz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:29:38 -03:00
trace: Beautify perf_event_open syscall Syswide tracing and then running 'stat' and 'trace': $ perf trace -e perf_event_open 1034.649 (0.019 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = -1 EINVAL Invalid argument 1034.670 (0.008 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.681 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.692 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 9986.983 (0.014 ms): trace/6139 perf_event_open(attr_uptr: 0x7ffd9c629320, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.026 (0.016 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.041 (0.008 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.489 (0.092 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.536 (0.044 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 4 9987.580 (0.041 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 5 9987.620 (0.037 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 7 9987.659 (0.035 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 8 9987.692 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 9 9987.727 (0.032 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 10 9987.761 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 11 Need to intercept perf_copy_attr() with a kprobe or with eBPF... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-njb105hab2i3t5dexym9lskl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-11 22:47:54 -03:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for mmap prot parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 17:44:42 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for mmap prot parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 17:44:42 -03:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for mmap flags parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:48:33 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for mmap flags parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:48:33 -03:00
perf trace: Check if MAP_32BIT is defined MAP_32BIT is defined only on x86... this means perf fails to build on all other platforms. Signed-off-by: Kyle McMartin <kyle@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20130905142947.GA25882@merlin.infradead.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05 10:29:47 -04:00
perf trace: Add beautifier for mmap flags parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:48:33 -03:00
perf trace: Check if MAP_32BIT is defined MAP_32BIT is defined only on x86... this means perf fails to build on all other platforms. Signed-off-by: Kyle McMartin <kyle@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20130905142947.GA25882@merlin.infradead.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05 10:29:47 -04:00
perf trace: Add beautifier for mmap flags parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:48:33 -03:00
perf trace: Handle missing HUGEPAGE defines Needed for compile on Fedora 12 which goes back to the 2.6.32 kernel. Might be needed for RHEL6. I use F12 to compile static binaries for Wind River Linux 4.3. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/n/tip-nd0d7rbajgm8k6tah3xv34v1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-27 10:50:40 -06:00
perf trace: Add beautifier for mmap flags parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:48:33 -03:00
perf trace: Handle missing HUGEPAGE defines Needed for compile on Fedora 12 which goes back to the 2.6.32 kernel. Might be needed for RHEL6. I use F12 to compile static binaries for Wind River Linux 4.3. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/n/tip-nd0d7rbajgm8k6tah3xv34v1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-27 10:50:40 -06:00
perf trace: Add beautifier for mmap flags parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:48:33 -03:00
perf trace: Add beautifier for mremap flags param ~/devel/kernel/tools/perf(branch:master*) » sudo ./perf trace ~/mremap_test 0.543 ( 0.003 ms): mprotect(start: 0x600000, len: 4096, prot: READ ) = 0 0.550 ( 0.003 ms): mprotect(start: 0x7f441260d000, len: 4096, prot: READ) = 0 0.561 ( 0.010 ms): munmap(addr: 0x7f44125e2000, len: 165572 ) = 0 0.595 ( 0.012 ms): mmap(len: 12288, prot: READ|WRITE, flags: SHARED|ANONYMOUS|LOCKED, fd: -1) = 0x12608000 0.603 ( 0.006 ms): mremap(addr: 0x7f4412608000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da295000) = 0xda295000 0.608 ( 0.003 ms): mremap(addr: 0x7f441260a000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da297000) = 0xda297000 0.612 ( 0.003 ms): mremap(addr: 0x7f4412609000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da296000) = 0xda296000 0.619 ( 0.000 ms): exit_group( Signed-off-by: Alex Snast <asnast@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1407944560-26924-1-git-send-email-asnast@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-13 18:42:40 +03:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for madvise behaviour/advice parm [root@zoo ~]# perf trace -e madvise -a 35299.631 ( 0.019 ms): 19553 madvise(start: 0x7f5b101d4000, len_in: 4063232, behavior: DONTNEED ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a3twa1ia5sxt0hsxqika4efq@git.kernel.org [ ifdef DO(NT)?DUMP to fix build on f16, from David Ahern ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:06:41 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for madvise behaviour/advice parm [root@zoo ~]# perf trace -e madvise -a 35299.631 ( 0.019 ms): 19553 madvise(start: 0x7f5b101d4000, len_in: 4063232, behavior: DONTNEED ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a3twa1ia5sxt0hsxqika4efq@git.kernel.org [ ifdef DO(NT)?DUMP to fix build on f16, from David Ahern ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:06:41 -03:00
perf trace: Handle missing HUGEPAGE defines Needed for compile on Fedora 12 which goes back to the 2.6.32 kernel. Might be needed for RHEL6. I use F12 to compile static binaries for Wind River Linux 4.3. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/n/tip-nd0d7rbajgm8k6tah3xv34v1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-27 10:50:40 -06:00
perf trace: Add beautifier for madvise behaviour/advice parm [root@zoo ~]# perf trace -e madvise -a 35299.631 ( 0.019 ms): 19553 madvise(start: 0x7f5b101d4000, len_in: 4063232, behavior: DONTNEED ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a3twa1ia5sxt0hsxqika4efq@git.kernel.org [ ifdef DO(NT)?DUMP to fix build on f16, from David Ahern ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:06:41 -03:00
perf trace: Handle missing HUGEPAGE defines Needed for compile on Fedora 12 which goes back to the 2.6.32 kernel. Might be needed for RHEL6. I use F12 to compile static binaries for Wind River Linux 4.3. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/n/tip-nd0d7rbajgm8k6tah3xv34v1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-27 10:50:40 -06:00
perf trace: Add beautifier for madvise behaviour/advice parm [root@zoo ~]# perf trace -e madvise -a 35299.631 ( 0.019 ms): 19553 madvise(start: 0x7f5b101d4000, len_in: 4063232, behavior: DONTNEED ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a3twa1ia5sxt0hsxqika4efq@git.kernel.org [ ifdef DO(NT)?DUMP to fix build on f16, from David Ahern ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:06:41 -03:00
perf trace: Handle missing HUGEPAGE defines Needed for compile on Fedora 12 which goes back to the 2.6.32 kernel. Might be needed for RHEL6. I use F12 to compile static binaries for Wind River Linux 4.3. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/n/tip-nd0d7rbajgm8k6tah3xv34v1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-27 10:50:40 -06:00
perf trace: Add beautifier for madvise behaviour/advice parm [root@zoo ~]# perf trace -e madvise -a 35299.631 ( 0.019 ms): 19553 madvise(start: 0x7f5b101d4000, len_in: 4063232, behavior: DONTNEED ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a3twa1ia5sxt0hsxqika4efq@git.kernel.org [ ifdef DO(NT)?DUMP to fix build on f16, from David Ahern ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:06:41 -03:00
perf trace: Beautify flock 'cmd' arg 4735.638 ( 0.003 ms): man/19881 flock(fd: 3, cmd: SH|NB) = 0 4735.832 ( 0.002 ms): man/19881 flock(fd: 3, cmd: UN ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-amh3y88kh1nmclpwezqlarl8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 11:49:50 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for futex 'operation' parm That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 13:46:44 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for futex 'operation' parm That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 13:46:44 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for futex 'operation' parm That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 13:46:44 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for futex 'operation' parm That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 13:46:44 -03:00
perf trace: Use strarray for ltrace's whence arg Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5f9jhbq8my4ojarhtlygveox@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 16:15:12 -03:00
perf trace: Add cmd string table to decode sys_bpf first arg # perf trace -e bpf perf record -e /tmp/foo.o -a 362.779 (0.130 ms): perf/3451 bpf(cmd: PROG_LOAD, uattr: 0x7ffe9a6825d0, size: 48) = 3 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-2b0nknu53baz9e0wj4thcdd8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-10-29 11:48:18 -03:00
perf trace: Allow specifying index offset in strarrays So that the index passed doesn't have to start at zero, being decremented from an offset specified when declaring the strarray before being used as the real array index. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-k1ce6uqyt4qar9edrj3mevod@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 16:00:21 -03:00
perf trace: Beautify epoll_ctl 'op' arg [root@sandy ~]# perf trace -e epoll_ctl 2.490 (0.003 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314ef0) = 0 2.621 (0.003 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24 ) = 0 2.833 (0.010 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314cd0) = 0 2.953 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24 ) = 0 3.118 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314d20) = 0 4.762 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24 ) = 0 ^C[root@sandy ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-88xz9phc8cbicnxonud6if8h@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 11:27:32 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Beautify keyctl's option arg 8.697 (0.103 ms): pool/2343 keyctl(option: GET_PERSISTENT, arg2: 1000, arg3: 4294967294, arg4: 140703061514067, arg5: 140703692383680) = 1023192809 8.763 (0.049 ms): pool/2343 keyctl(option: SEARCH, arg2: 1023192809, arg3: 140703745767772, arg4: 140703745767832, arg5: 4294967294) = 140224497 8.789 (0.016 ms): pool/2343 keyctl(option: SEARCH, arg2: 140224497, arg3: 140703745767814, arg4: 140703745767900) = 512300257 8.807 (0.011 ms): pool/2343 keyctl(option: READ, arg2: 512300257 ) = 13 8.822 (0.008 ms): pool/2343 keyctl(option: READ, arg2: 512300257, arg3: 140703061514000, arg4: 13 ) = 13 8.837 (0.007 ms): pool/2343 keyctl(option: READ, arg2: 140224497 ) = 4 8.852 (0.009 ms): pool/2343 keyctl(option: READ, arg2: 140224497, arg3: 140703061514000, arg4: 4 ) = 4 8.869 (0.010 ms): pool/2343 keyctl(option: SEARCH, arg2: 140224497, arg3: 140703745767772, arg4: 140703061514032) = -1 ENOKEY Required key not available 8.892 (0.017 ms): pool/2343 keyctl(option: DESCRIBE, arg2: 512300257 ) = 43 8.910 (0.012 ms): pool/2343 keyctl(option: DESCRIBE, arg2: 512300257, arg3: 140703061544384, arg4: 43) = 43 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-013ab219irsxngyumrf5gp8s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 11:05:36 -03:00
perf trace: Use strarray for ltrace's whence arg Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5f9jhbq8my4ojarhtlygveox@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 16:15:12 -03:00
perf trace: Add beautifier for futex 'operation' parm That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 13:46:44 -03:00
perf trace: Beautify fcntl 'cmd' arg This is just for the low hanging fruit 'cmd' arg, a proper beautifier will as well use arg->mask to ignore the third arg for some of the cmds. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-phhvcyi9vdnxw9l11tbquvru@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 16:28:58 -03:00
perf trace: Beautify rlmimit resources On the getrlimit, setrlimit and prlimit64 syscalls. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-pups75313afhn7p96qwhzs9v@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 11:52:33 -03:00
perf trace: Beautify rt_sigprocmask 'how' arg Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-e2epkc38e3x0uqmi1xie4tgc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 16:37:46 -03:00
perf trace: Add beautifier for clock_gettime's clk_id argument Before: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: 1, tp: 0x7f3b45729cd0 ) = 0 After: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: MONOTONIC, tp: 0x7f3b45729cd0 ) = 0 v2: Update to use the STRARRAY option Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1379900700-5186-6-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-22 19:45:00 -06:00
perf trace: Add missing clockid entries We were missing: CLOCK_BOOTTIME, CLOCK_REALTIME_ALARM, CLOCK_BOOTTIME_ALARM, CLOCK_SGI_CYCLE and CLOCK_TAI. Add them. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-d67rwqtwm9jyenwes98kr0cr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 10:38:38 -03:00
perf trace: Add beautifier for clock_gettime's clk_id argument Before: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: 1, tp: 0x7f3b45729cd0 ) = 0 After: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: MONOTONIC, tp: 0x7f3b45729cd0 ) = 0 v2: Update to use the STRARRAY option Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1379900700-5186-6-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-22 19:45:00 -06:00
perf trace: Beautify socket 'family' arg Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-8xuaupgmy82v7sha3l09oaux@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 10:27:41 -03:00
perf trace: Beautify socket 'type' arg Taking into account the fact that the SOCK_ types can be overriden for ABI reasons on MIPS and also masking and interpreting the socket flags (NONBLOCK and CLOEXEC), printing whatever is left in the flags bits as an hex number, or'ed. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-cbn57082gq9v0sbsd67edwjq@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 11:00:44 -03:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Handle MSG_WAITFORONE not defined Needed for compiles on Fedora 12 for example. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1379900700-5186-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-22 19:44:56 -06:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Beautify access 'mode' arg Removing the _OK suffix and using RWX when all three bits are set, for instance. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ypaz9k43lyqy94679feqnv8x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 11:42:27 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Add beautifier for open's flags arg Suppressing the mode when O_CREAT not present, needs improvements on the arg masking mechanism to be reused in openat, open_by_handle_at, mq_open: [root@zoo ~]# perf trace -a -e open | grep -v 'flags: RDONLY' | head -5 147.541 ( 0.028 ms): 1188 open(filename: 0x33c17782fb, flags: CLOEXEC ) = 23 229.898 ( 0.020 ms): 2071 open(filename: 0x3d93c80, flags: NOATIME ) = -1 EPERM Operation not permitted [root@zoo ~]# perf trace -a -e open | grep CREAT 1406.697 ( 0.024 ms): 616 open(filename: 0x7fffc3a0f910, flags: CREAT|TRUNC|WRONLY, mode: 438 ) = -1 ENOENT No such file or directory 2032.770 ( 0.804 ms): 4354 open(filename: 0x7f33ac814368, flags: CREAT|EXCL|RDWR, mode: 384 ) = 115 ^C[root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c7vm6klaf995qw1vqdih5t7q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 16:22:31 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for open's flags arg Suppressing the mode when O_CREAT not present, needs improvements on the arg masking mechanism to be reused in openat, open_by_handle_at, mq_open: [root@zoo ~]# perf trace -a -e open | grep -v 'flags: RDONLY' | head -5 147.541 ( 0.028 ms): 1188 open(filename: 0x33c17782fb, flags: CLOEXEC ) = 23 229.898 ( 0.020 ms): 2071 open(filename: 0x3d93c80, flags: NOATIME ) = -1 EPERM Operation not permitted [root@zoo ~]# perf trace -a -e open | grep CREAT 1406.697 ( 0.024 ms): 616 open(filename: 0x7fffc3a0f910, flags: CREAT|TRUNC|WRONLY, mode: 438 ) = -1 ENOENT No such file or directory 2032.770 ( 0.804 ms): 4354 open(filename: 0x7f33ac814368, flags: CREAT|EXCL|RDWR, mode: 384 ) = 115 ^C[root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c7vm6klaf995qw1vqdih5t7q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 16:22:31 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for open's flags arg Suppressing the mode when O_CREAT not present, needs improvements on the arg masking mechanism to be reused in openat, open_by_handle_at, mq_open: [root@zoo ~]# perf trace -a -e open | grep -v 'flags: RDONLY' | head -5 147.541 ( 0.028 ms): 1188 open(filename: 0x33c17782fb, flags: CLOEXEC ) = 23 229.898 ( 0.020 ms): 2071 open(filename: 0x3d93c80, flags: NOATIME ) = -1 EPERM Operation not permitted [root@zoo ~]# perf trace -a -e open | grep CREAT 1406.697 ( 0.024 ms): 616 open(filename: 0x7fffc3a0f910, flags: CREAT|TRUNC|WRONLY, mode: 438 ) = -1 ENOENT No such file or directory 2032.770 ( 0.804 ms): 4354 open(filename: 0x7f33ac814368, flags: CREAT|EXCL|RDWR, mode: 384 ) = 115 ^C[root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c7vm6klaf995qw1vqdih5t7q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 16:22:31 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Add beautifier for open's flags arg Suppressing the mode when O_CREAT not present, needs improvements on the arg masking mechanism to be reused in openat, open_by_handle_at, mq_open: [root@zoo ~]# perf trace -a -e open | grep -v 'flags: RDONLY' | head -5 147.541 ( 0.028 ms): 1188 open(filename: 0x33c17782fb, flags: CLOEXEC ) = 23 229.898 ( 0.020 ms): 2071 open(filename: 0x3d93c80, flags: NOATIME ) = -1 EPERM Operation not permitted [root@zoo ~]# perf trace -a -e open | grep CREAT 1406.697 ( 0.024 ms): 616 open(filename: 0x7fffc3a0f910, flags: CREAT|TRUNC|WRONLY, mode: 438 ) = -1 ENOENT No such file or directory 2032.770 ( 0.804 ms): 4354 open(filename: 0x7f33ac814368, flags: CREAT|EXCL|RDWR, mode: 384 ) = 115 ^C[root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c7vm6klaf995qw1vqdih5t7q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 16:22:31 -03:00
trace: Beautify perf_event_open syscall Syswide tracing and then running 'stat' and 'trace': $ perf trace -e perf_event_open 1034.649 (0.019 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = -1 EINVAL Invalid argument 1034.670 (0.008 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.681 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.692 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 9986.983 (0.014 ms): trace/6139 perf_event_open(attr_uptr: 0x7ffd9c629320, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.026 (0.016 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.041 (0.008 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.489 (0.092 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.536 (0.044 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 4 9987.580 (0.041 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 5 9987.620 (0.037 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 7 9987.659 (0.035 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 8 9987.692 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 9 9987.727 (0.032 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 10 9987.761 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 11 Need to intercept perf_copy_attr() with a kprobe or with eBPF... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-njb105hab2i3t5dexym9lskl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-11 22:47:54 -03:00
perf trace: Beautify eventfd2 'flags' arg 61.168 ( 0.004 ms): 24267 eventfd2(flags: CLOEXEC|NONBLOCK) = 9 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3hg8eajdzil077501c8f5jkw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 12:18:56 -03:00
perf trace: Beautify pipe2 'flags' arg 4.234 (0.005 ms): fetchmail/3224 pipe2(fildes: 0x7fffc72bcee0, flags: CLOEXEC) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9e1jz78i6q6e0xr9fsitqbpe@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-23 12:52:04 -03:00
perf trace: Beautify signal number arg in several syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ek8w714ramabyl5jqqvjlbyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 17:17:15 -03:00
perf trace: Decode architecture-specific signal numbers SIGSTKFLT is not defined on alpha, mips or sparc. SIGEMT and SIGSWI are defined on some architectures and should be decoded here if so. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Fixes: 8bad5b0abfdb ('perf trace: Beautify signal number arg in several syscalls') Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1391648441.3003.101.camel@deadeye.wl.decadent.org.uk Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-06 01:00:41 +00:00
perf trace: Beautify signal number arg in several syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ek8w714ramabyl5jqqvjlbyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 17:17:15 -03:00
perf trace: Fix ioctl 'request' beautifier build problems on !(i386 || x86_64) arches Supporting decoding the ioctl 'request' parameter needs more work to properly support more architectures, the current approach doesn't work on at least powerpc and sparc, as reported by Ben Hutchings in http://lkml.kernel.org/r/1391593985.3003.48.camel@deadeye.wl.decadent.org.uk . Work around that by making it to be ifdefed for the architectures known to work with the current, limited approach, i386 and x86_64 till better code is written. Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ben Hutchings <ben@decadent.org.uk> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@vger.kernel.org> # 3.13 Fixes: 78645cf3ed32 ("perf trace: Initial beautifier for ioctl's 'cmd' arg") Link: http://lkml.kernel.org/n/tip-ss04k11insqlu329xh5g02q0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-10 14:09:48 -03:00
perf trace: Initial beautifier for ioctl's 'cmd' arg [root@zoo linux]# trace -e ioctl | grep -v "cmd: 0x" | head -10 0.386 ( 0.001 ms): trace/1602 ioctl(fd: 1<pipe:[127057]>, cmd: TCGETS, arg: 0x7fff59fcb4d0 ) = -1 ENOTTY Inappropriate ioctl for device 1459.368 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.586 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.611 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 3740.526 ( 0.002 ms): awk/1612 ioctl(fd: 1<pipe:[128265]>, cmd: TCGETS, arg: 0x7fff4d166b90 ) = -1 ENOTTY Inappropriate ioctl for device 3740.704 ( 0.001 ms): awk/1612 ioctl(fd: 3</proc/meminfo>, cmd: TCGETS, arg: 0x7fff4d1669a0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.550 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.555 ( 0.003 ms): ps/1614 ioctl(fd: 2<socket:[19550]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.558 ( 0.002 ms): ps/1614 ioctl(cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.572 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TCGETS, arg: 0x7fff59176220 ) = -1 ENOTTY Inappropriate ioctl for device [root@zoo linux]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-afajwap3mr60dfl4qpdl1pxn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:43:20 -03:00
perf trace: Fix ioctl 'request' beautifier build problems on !(i386 || x86_64) arches Supporting decoding the ioctl 'request' parameter needs more work to properly support more architectures, the current approach doesn't work on at least powerpc and sparc, as reported by Ben Hutchings in http://lkml.kernel.org/r/1391593985.3003.48.camel@deadeye.wl.decadent.org.uk . Work around that by making it to be ifdefed for the architectures known to work with the current, limited approach, i386 and x86_64 till better code is written. Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ben Hutchings <ben@decadent.org.uk> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@vger.kernel.org> # 3.13 Fixes: 78645cf3ed32 ("perf trace: Initial beautifier for ioctl's 'cmd' arg") Link: http://lkml.kernel.org/n/tip-ss04k11insqlu329xh5g02q0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-10 14:09:48 -03:00
perf trace: Initial beautifier for ioctl's 'cmd' arg [root@zoo linux]# trace -e ioctl | grep -v "cmd: 0x" | head -10 0.386 ( 0.001 ms): trace/1602 ioctl(fd: 1<pipe:[127057]>, cmd: TCGETS, arg: 0x7fff59fcb4d0 ) = -1 ENOTTY Inappropriate ioctl for device 1459.368 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.586 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.611 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 3740.526 ( 0.002 ms): awk/1612 ioctl(fd: 1<pipe:[128265]>, cmd: TCGETS, arg: 0x7fff4d166b90 ) = -1 ENOTTY Inappropriate ioctl for device 3740.704 ( 0.001 ms): awk/1612 ioctl(fd: 3</proc/meminfo>, cmd: TCGETS, arg: 0x7fff4d1669a0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.550 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.555 ( 0.003 ms): ps/1614 ioctl(fd: 2<socket:[19550]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.558 ( 0.002 ms): ps/1614 ioctl(cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.572 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TCGETS, arg: 0x7fff59176220 ) = -1 ENOTTY Inappropriate ioctl for device [root@zoo linux]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-afajwap3mr60dfl4qpdl1pxn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:43:20 -03:00
perf trace: Add helper for syscalls with a single strarray arg In such cases just stating the (arg, name, array) is enough, reducing the size of the syscall formatters table. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:13:37 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Allow printing syscall return values in hex event_format->flags has a FIELD_IS_POINTER, but it is not set for the sys_exit 'ret' field in syscalls like mmap, so we need a way to ask for hex printing for pointer returns and keep things like 'read' returns printing in decimal. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lfuveegw4od1t08n7bsmonrm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 11:36:30 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Beautify access 'mode' arg Removing the _OK suffix and using RWX when all three bits are set, for instance. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ypaz9k43lyqy94679feqnv8x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 11:42:27 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf trace: Add cmd string table to decode sys_bpf first arg # perf trace -e bpf perf record -e /tmp/foo.o -a 362.779 (0.130 ms): perf/3451 bpf(cmd: PROG_LOAD, uattr: 0x7ffe9a6825d0, size: 48) = 3 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-2b0nknu53baz9e0wj4thcdd8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-10-29 11:48:18 -03:00
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtjasz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:29:38 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Add beautifier for clock_gettime's clk_id argument Before: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: 1, tp: 0x7f3b45729cd0 ) = 0 After: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: MONOTONIC, tp: 0x7f3b45729cd0 ) = 0 v2: Update to use the STRARRAY option Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1379900700-5186-6-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-22 19:45:00 -06:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Beautify 'connect' result It is an errno, so print an error string. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zt68gijvvoe8gd7kmclo43si@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-07-30 16:38:23 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Add helper for syscalls with a single strarray arg In such cases just stating the (arg, name, array) is enough, reducing the size of the syscall formatters table. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:13:37 -03:00
perf trace: Beautify eventfd2 'flags' arg 61.168 ( 0.004 ms): 24267 eventfd2(flags: CLOEXEC|NONBLOCK) = 9 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3hg8eajdzil077501c8f5jkw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 12:18:56 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Beautify flock 'cmd' arg 4735.638 ( 0.003 ms): man/19881 flock(fd: 3, cmd: SH|NB) = 0 4735.832 ( 0.002 ms): man/19881 flock(fd: 3, cmd: UN ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-amh3y88kh1nmclpwezqlarl8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 11:49:50 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Add beautifier for futex 'operation' parm That uses the arg mask mechanism just introduced to suppress ignored arguments according to the futex operation. Based on an initial patch from David Ahern that showed the need for some way to allow args to tell how many further args should be shown. Initial-patch-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0k30it46r4hv5eanefbdmj5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 13:46:44 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Add helper for syscalls with a single strarray arg In such cases just stating the (arg, name, array) is enough, reducing the size of the syscall formatters table. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:13:37 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtjasz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:29:38 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Fix ioctl 'request' beautifier build problems on !(i386 || x86_64) arches Supporting decoding the ioctl 'request' parameter needs more work to properly support more architectures, the current approach doesn't work on at least powerpc and sparc, as reported by Ben Hutchings in http://lkml.kernel.org/r/1391593985.3003.48.camel@deadeye.wl.decadent.org.uk . Work around that by making it to be ifdefed for the architectures known to work with the current, limited approach, i386 and x86_64 till better code is written. Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ben Hutchings <ben@decadent.org.uk> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@vger.kernel.org> # 3.13 Fixes: 78645cf3ed32 ("perf trace: Initial beautifier for ioctl's 'cmd' arg") Link: http://lkml.kernel.org/n/tip-ss04k11insqlu329xh5g02q0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-10 14:09:48 -03:00
perf trace: Initial beautifier for ioctl's 'cmd' arg [root@zoo linux]# trace -e ioctl | grep -v "cmd: 0x" | head -10 0.386 ( 0.001 ms): trace/1602 ioctl(fd: 1<pipe:[127057]>, cmd: TCGETS, arg: 0x7fff59fcb4d0 ) = -1 ENOTTY Inappropriate ioctl for device 1459.368 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.586 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.611 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 3740.526 ( 0.002 ms): awk/1612 ioctl(fd: 1<pipe:[128265]>, cmd: TCGETS, arg: 0x7fff4d166b90 ) = -1 ENOTTY Inappropriate ioctl for device 3740.704 ( 0.001 ms): awk/1612 ioctl(fd: 3</proc/meminfo>, cmd: TCGETS, arg: 0x7fff4d1669a0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.550 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.555 ( 0.003 ms): ps/1614 ioctl(fd: 2<socket:[19550]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.558 ( 0.002 ms): ps/1614 ioctl(cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.572 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TCGETS, arg: 0x7fff59176220 ) = -1 ENOTTY Inappropriate ioctl for device [root@zoo linux]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-afajwap3mr60dfl4qpdl1pxn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 17:43:20 -03:00
perf trace: Fix ioctl 'request' beautifier build problems on !(i386 || x86_64) arches Supporting decoding the ioctl 'request' parameter needs more work to properly support more architectures, the current approach doesn't work on at least powerpc and sparc, as reported by Ben Hutchings in http://lkml.kernel.org/r/1391593985.3003.48.camel@deadeye.wl.decadent.org.uk . Work around that by making it to be ifdefed for the architectures known to work with the current, limited approach, i386 and x86_64 till better code is written. Reported-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Ben Hutchings <ben@decadent.org.uk> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@vger.kernel.org> # 3.13 Fixes: 78645cf3ed32 ("perf trace: Initial beautifier for ioctl's 'cmd' arg") Link: http://lkml.kernel.org/n/tip-ss04k11insqlu329xh5g02q0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-02-10 14:09:48 -03:00
perf trace: Beautify keyctl's option arg 8.697 (0.103 ms): pool/2343 keyctl(option: GET_PERSISTENT, arg2: 1000, arg3: 4294967294, arg4: 140703061514067, arg5: 140703692383680) = 1023192809 8.763 (0.049 ms): pool/2343 keyctl(option: SEARCH, arg2: 1023192809, arg3: 140703745767772, arg4: 140703745767832, arg5: 4294967294) = 140224497 8.789 (0.016 ms): pool/2343 keyctl(option: SEARCH, arg2: 140224497, arg3: 140703745767814, arg4: 140703745767900) = 512300257 8.807 (0.011 ms): pool/2343 keyctl(option: READ, arg2: 512300257 ) = 13 8.822 (0.008 ms): pool/2343 keyctl(option: READ, arg2: 512300257, arg3: 140703061514000, arg4: 13 ) = 13 8.837 (0.007 ms): pool/2343 keyctl(option: READ, arg2: 140224497 ) = 4 8.852 (0.009 ms): pool/2343 keyctl(option: READ, arg2: 140224497, arg3: 140703061514000, arg4: 4 ) = 4 8.869 (0.010 ms): pool/2343 keyctl(option: SEARCH, arg2: 140224497, arg3: 140703745767772, arg4: 140703061514032) = -1 ENOKEY Required key not available 8.892 (0.017 ms): pool/2343 keyctl(option: DESCRIBE, arg2: 512300257 ) = 43 8.910 (0.012 ms): pool/2343 keyctl(option: DESCRIBE, arg2: 512300257, arg3: 140703061544384, arg4: 43) = 43 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-013ab219irsxngyumrf5gp8s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 11:05:36 -03:00
perf trace: Beautify signal number arg in several syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ek8w714ramabyl5jqqvjlbyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 17:17:15 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Add beautifier for madvise behaviour/advice parm [root@zoo ~]# perf trace -e madvise -a 35299.631 ( 0.019 ms): 19553 madvise(start: 0x7f5b101d4000, len_in: 4063232, behavior: DONTNEED ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a3twa1ia5sxt0hsxqika4efq@git.kernel.org [ ifdef DO(NT)?DUMP to fix build on f16, from David Ahern ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:06:41 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Beautify mlock & friends 'addr' arg Printing it as an hex number. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gd68zmnwbbofsv5m6w18intw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 00:09:38 -03:00
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtjasz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:29:38 -03:00
perf trace: Add beautifier for mmap prot parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 17:44:42 -03:00
perf trace: Add beautifier for mmap flags parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 10:48:33 -03:00
perf trace: Beautify fifth argument of mmap() as fd The fifth argument of mmap syscall is fd and it often contains -1 as a value for anon mappings. Without this patch it doesn't show the file name as well as it shows -1 as 4294967295. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 15:24:59 +09:00
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtjasz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:29:38 -03:00
perf trace: Add beautifier for mmap prot parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 17:44:42 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Add beautifier for mmap prot parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 17:44:42 -03:00
perf trace: Add beautifier for mremap flags param ~/devel/kernel/tools/perf(branch:master*) » sudo ./perf trace ~/mremap_test 0.543 ( 0.003 ms): mprotect(start: 0x600000, len: 4096, prot: READ ) = 0 0.550 ( 0.003 ms): mprotect(start: 0x7f441260d000, len: 4096, prot: READ) = 0 0.561 ( 0.010 ms): munmap(addr: 0x7f44125e2000, len: 165572 ) = 0 0.595 ( 0.012 ms): mmap(len: 12288, prot: READ|WRITE, flags: SHARED|ANONYMOUS|LOCKED, fd: -1) = 0x12608000 0.603 ( 0.006 ms): mremap(addr: 0x7f4412608000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da295000) = 0xda295000 0.608 ( 0.003 ms): mremap(addr: 0x7f441260a000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da297000) = 0xda297000 0.612 ( 0.003 ms): mremap(addr: 0x7f4412609000, old_len: 4096, new_len: 4096, flags: MAYMOVE|FIXED, new_addr: 0x7f16da296000) = 0xda296000 0.619 ( 0.000 ms): exit_group( Signed-off-by: Alex Snast <asnast@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1407944560-26924-1-git-send-email-asnast@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-13 18:42:40 +03:00
perf trace: Add beautifier for mmap prot parm [root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 17:44:42 -03:00
perf trace: Beautify mlock & friends 'addr' arg Printing it as an hex number. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gd68zmnwbbofsv5m6w18intw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 00:09:38 -03:00
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtjasz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:29:38 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Add beautifier for open's flags arg Suppressing the mode when O_CREAT not present, needs improvements on the arg masking mechanism to be reused in openat, open_by_handle_at, mq_open: [root@zoo ~]# perf trace -a -e open | grep -v 'flags: RDONLY' | head -5 147.541 ( 0.028 ms): 1188 open(filename: 0x33c17782fb, flags: CLOEXEC ) = 23 229.898 ( 0.020 ms): 2071 open(filename: 0x3d93c80, flags: NOATIME ) = -1 EPERM Operation not permitted [root@zoo ~]# perf trace -a -e open | grep CREAT 1406.697 ( 0.024 ms): 616 open(filename: 0x7fffc3a0f910, flags: CREAT|TRUNC|WRONLY, mode: 438 ) = -1 ENOENT No such file or directory 2032.770 ( 0.804 ms): 4354 open(filename: 0x7f33ac814368, flags: CREAT|EXCL|RDWR, mode: 384 ) = 115 ^C[root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c7vm6klaf995qw1vqdih5t7q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 16:22:31 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Tell arg formatters the arg index ... so that it can mask args relative to its position, like the 'mode' arg that may or not be printed according to the 'flags' (O_CREAT) value. [root@zoo ~]# perf trace -a -e openat,open_by_handle_at | head -1 469.754 ( 0.034 ms): 1183 openat(dfd: -100, filename: 0x7fbde40014b0, flags: CLOEXEC|DIRECTORY|NONBLOCK) = 23 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bgokqpkufd4sio7ixxknf1ux@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 16:40:40 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Tell arg formatters the arg index ... so that it can mask args relative to its position, like the 'mode' arg that may or not be printed according to the 'flags' (O_CREAT) value. [root@zoo ~]# perf trace -a -e openat,open_by_handle_at | head -1 469.754 ( 0.034 ms): 1183 openat(dfd: -100, filename: 0x7fbde40014b0, flags: CLOEXEC|DIRECTORY|NONBLOCK) = 23 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bgokqpkufd4sio7ixxknf1ux@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 16:40:40 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
trace: Beautify perf_event_open syscall Syswide tracing and then running 'stat' and 'trace': $ perf trace -e perf_event_open 1034.649 (0.019 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = -1 EINVAL Invalid argument 1034.670 (0.008 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.681 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 1034.692 (0.007 ms): perf/6133 perf_event_open(attr_uptr: 0x36f0360, pid: 16134, cpu: -1, group_fd: -1) = -1 EINVAL Invalid argument 9986.983 (0.014 ms): trace/6139 perf_event_open(attr_uptr: 0x7ffd9c629320, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.026 (0.016 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.041 (0.008 ms): trace/6139 perf_event_open(attr_uptr: 0x37c7e70, pid: -1, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.489 (0.092 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 3 9987.536 (0.044 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 4 9987.580 (0.041 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 5 9987.620 (0.037 ms): trace/6139 perf_event_open(attr_uptr: 0x3795ee0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 7 9987.659 (0.035 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, group_fd: -1, flags: FD_CLOEXEC) = 8 9987.692 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 1, group_fd: -1, flags: FD_CLOEXEC) = 9 9987.727 (0.032 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 2, group_fd: -1, flags: FD_CLOEXEC) = 10 9987.761 (0.031 ms): trace/6139 perf_event_open(attr_uptr: 0x37975d0, pid: 16140, cpu: 3, group_fd: -1, flags: FD_CLOEXEC) = 11 Need to intercept perf_copy_attr() with a kprobe or with eBPF... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-njb105hab2i3t5dexym9lskl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-11 22:47:54 -03:00
perf trace: Beautify pipe2 'flags' arg 4.234 (0.005 ms): fetchmail/3224 pipe2(fildes: 0x7fffc72bcee0, flags: CLOEXEC) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9e1jz78i6q6e0xr9fsitqbpe@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-23 12:52:04 -03:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Add helper for syscalls with a single strarray arg In such cases just stating the (arg, name, array) is enough, reducing the size of the syscall formatters table. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:13:37 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Use the FD beautifier for socket syscall fds But we really should have something like 'strace -yy' here... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyrt1ypfq68u4ljagyk2nj1i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 10:57:02 -03:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Use the FD beautifier for socket syscall fds But we really should have something like 'strace -yy' here... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyrt1ypfq68u4ljagyk2nj1i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 10:57:02 -03:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Use the FD beautifier for socket syscall fds But we really should have something like 'strace -yy' here... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyrt1ypfq68u4ljagyk2nj1i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 10:57:02 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Beautify signal number arg in several syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ek8w714ramabyl5jqqvjlbyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 17:17:15 -03:00
perf trace: Add helper for syscalls with a single strarray arg In such cases just stating the (arg, name, array) is enough, reducing the size of the syscall formatters table. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:13:37 -03:00
perf trace: Beautify signal number arg in several syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ek8w714ramabyl5jqqvjlbyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 17:17:15 -03:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Use the FD beautifier for socket syscall fds But we really should have something like 'strace -yy' here... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyrt1ypfq68u4ljagyk2nj1i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 10:57:02 -03:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Use the FD beautifier for socket syscall fds But we really should have something like 'strace -yy' here... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyrt1ypfq68u4ljagyk2nj1i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 10:57:02 -03:00
perf trace: Beautify send/recv syscall 'flags' arg [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg 6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable 6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL ) = 961 6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL ) = 945 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:54:48 -03:00
perf trace: Use the FD beautifier for socket syscall fds But we really should have something like 'strace -yy' here... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyrt1ypfq68u4ljagyk2nj1i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-11 10:57:02 -03:00
perf trace: Add helper for syscalls with a single strarray arg In such cases just stating the (arg, name, array) is enough, reducing the size of the syscall formatters table. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:13:37 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Beautify socket 'family' arg Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-8xuaupgmy82v7sha3l09oaux@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 10:27:41 -03:00
perf trace: Beautify socket 'type' arg Taking into account the fact that the SOCK_ types can be overriden for ABI reasons on MIPS and also masking and interpreting the socket flags (NONBLOCK and CLOEXEC), printing whatever is left in the flags bits as an hex number, or'ed. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-cbn57082gq9v0sbsd67edwjq@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 11:00:44 -03:00
perf trace: Use socket's beautifiers in socketpair For the address family and socket type. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3a6cwwskobvan823pau76cm4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:24:20 -03:00
perf trace: Beautify socket 'family' arg Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-8xuaupgmy82v7sha3l09oaux@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 10:27:41 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Beautify signal number arg in several syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ek8w714ramabyl5jqqvjlbyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 17:17:15 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Add aliases to remaining syscalls of the sys_enter_newfoo Before: 2392.918 ( 0.008 ms): 21581 lstat(arg0: 140734915488448, arg1: 140734915488240, arg2: 140734915488240, arg3: 3, arg4: 24426352, arg5: 98) = 0 After: 7408.087 ( 0.013 ms): 21969 lstat(filename: 0x7fff44b4bf20, statbuf: 0x7fff44b4be50 ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-8nxaole8mb7zyopk47tdellj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:21:41 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname syscall arg beautifier in more syscalls Those were covered and tested in this cset: access, chdir, chmod, chown, chroot, creat, getxattr, inotify_add_watch, lchown, lgetxattr, listxattr, lsetxattr, mkdir, mkdirat, mknod, rmdir, faccessat, newfstatat, openat, readlink, readlinkat, removexattr, setxattr, statfs, swapon, swapoff, truncate, unlinkat, utime, utimes, utimensat. E.g.: # trace -e statfs,access,mkdir mkdir /tmp/bla 0.285 (0.020 ms): mkdir/2799 access(filename: /etc/ld.so.preload, mode: R ) = -1 ENOENT No such file or directory 1.070 (0.032 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc930) = 0 1.087 (0.013 ms): mkdir/2799 statfs(pathname: /sys/fs/selinux, buf: 0x7ffeafbdc820) = 0 1.189 (0.014 ms): mkdir/2799 access(filename: /etc/selinux/config ) = 0 1.905 (0.610 ms): mkdir/2799 mkdir(pathname: /tmp/bla, mode: 511 ) = 0 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wbqtnlktquun3wtpjdz3okul@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> and an empty message aborts the commit.
2015-08-04 23:31:25 -03:00
perf trace: Associate some more syscall args with the getname beautifier This time using 'trinity' to test these: fchmodat, futimesat, llistxattr, lremovexattr, lstat, mknodat, mq_unlink, stat and vmsplice. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a1uqu249nwwh0ixrhm80k4a4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-10 19:20:52 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Handle legacy syscalls tracepoints Currently the code skips the first field with the expectation that it is 'nr'. But older kernels do not have the 'nr' field: field:int nr; offset:8; size:4; signed:1; Change perf-trace to drop the field if it exists after parsing the format file. This fixes the off-by-one problem with older kernels (e.g., RHEL6). e.g, perf-trace shows this for write: 1.515 ( 0.006 ms): dd/4245 write(buf: 2</dev/pts/0>, count: 140733837536224 ) = 26 where 2 is really the fd, the huge number is really the buf address, etc. With this patch you get the more appropriate: 1.813 ( 0.003 ms): dd/6330 write(fd: 2</dev/pts/0>, buf: 0x7fff22fc81f0, count: 25) = 25 Based-on-a-patch-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gvpdave4u2yq2jnzbcdznpvf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-20 17:46:53 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Cache the is_exit syscall test No need to use two strcmp calls per syscall entry, do it just once, when reading the per syscall info. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lymtxhz0mg3adyt5e2pssn8f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-17 14:29:24 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: Add pagefault statistics 'perf trace' can show summary of events using -S option. This commit also reports number of major/minor pagefault events in this summary. $ perf trace -s --pf all -- sleep 1 Summary of events: sleep (18604), 275 events, 99.6%, 197 minfaults, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 2 0.000 0.001 0.002 100.00% open 3 0.004 0.005 0.007 21.13% close 3 0.001 0.001 0.001 1.37% fstat 3 0.001 0.002 0.002 10.66% mmap 8 0.002 0.004 0.006 10.69% mprotect 4 0.003 0.005 0.008 24.68% munmap 1 0.005 0.005 0.005 0.00% brk 3 0.001 0.002 0.003 28.08% access 3 0.002 0.003 0.005 24.48% nanosleep 1 1000.747 1000.747 1000.747 0.00% execve 8 0.000 0.033 0.246 91.00% arch_prctl 1 0.001 0.001 0.001 0.00% Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1404842716-19190-1-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 22:05:16 +04:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Move vfs_getname storage to per thread area We were storing the vfs_getname payload (i.e. ptr->string) into the trace wide storage area (struct trace), so that we could use the last payload when setting up the fd->pathname per thread tables, oops, not a good idea for multi cpu tracing sessions... Fix it by moving it to the per thread area (struct thread_trace). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3j05ttqyaem7kh7oubvr1keo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-14 13:16:27 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Use thread_{,_set}_priv helpers This is mechanical changes only for accounting access to thread->priv properly in the source level. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1412556363-26229-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-06 09:46:03 +09:00
perf tools: Remove EOL whitespaces Janitorial stuff: boredom moment. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u70i7shys3kths4hzru72bha@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-17 17:24:45 -03:00
perf trace: Use thread_{,_set}_priv helpers This is mechanical changes only for accounting access to thread->priv properly in the source level. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1412556363-26229-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-06 09:46:03 +09:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Use thread_{,_set}_priv helpers This is mechanical changes only for accounting access to thread->priv properly in the source level. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1412556363-26229-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-06 09:46:03 +09:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Use a constant for the syscall formatting buffer We were using it as a magic number, 1024, fix that. Eventually we need to stop doing it per line, and do it per arg, traversing the args at output time, to avoid the memmove() calls that will be used in the next cset to replace pointers present at raw_syscalls:sys_enter time with its contents that appear at probe:vfs_getname time, before raw_syscalls:sys_exit time. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4sz3wid39egay1pp8qmbur4u@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:17:29 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Remember what are the syscalls tracepoint evsels We will need to set filters on then. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u8hpgjpf3w8o1prnnjnwegwf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:24:51 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Remember what are the syscalls tracepoint evsels We will need to set filters on then. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u8hpgjpf3w8o1prnnjnwegwf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:24:51 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf tools: Rename 'perf_record_opts' to 'record_opts Reduce typing, functions use class__method convention, so unlikely to clash with other libraries. This actually was discussed in the "Link:" referenced message below. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-19 14:43:45 -03:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: Fix comm resolution when reading events from file Task comm's are getting lost when processing events from a file. The problem is that the trace struct used by the live processing has its host machine and the perf-session used for file based processing has its host machine. Fix by having both references point to the same machine. Before: 0.030 ( 0.001 ms): :27743/27743 brk( ... 0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... After: 0.030 ( 0.001 ms): make/27743 brk( ... 0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com [ Moved creation of new host machine to a separate constructor: machine__new_host() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:00 -06:00
perf trace: Handle multiple threads better wrt syscalls being intermixed $ trace time taskset -c 0 usleep 1 0.845 ( 0.021 ms): time/16722 wait4(upid: 4294967295, stat_addr: 0x7fff17f443d4, ru: 0x7fff17f44438 ) ... 0.865 ( 0.008 ms): time/16723 execve(arg0: 140733595272004, arg1: 140733595272720, arg2: 140733595272768, arg3: 139755107218496, arg4: 7307199665339051828, arg5: 3) = -2 2.395 ( 1.523 ms): taskset/16723 execve(arg0: 140733595272013, arg1: 140733595272720, arg2: 140733595272768, arg3: 139755107218496, arg4: 7307199665339051828, arg5: 3) = 0 2.411 ( 0.002 ms): taskset/16723 brk( ) = 0x1915000 3.300 ( 0.058 ms): usleep/16723 nanosleep(rqtp: 0x7ffff4ada190 ) = 0 <SNIP> 3.305 ( 0.000 ms): usleep/16723 exit_group( 3.363 ( 2.539 ms): time/16722 ... [continued]: wait4()) = 16723 3.366 ( 0.001 ms): time/16722 rt_sigaction(sig: INT, act: 0x7fff17f44160, oact: 0x7fff17f44200, sigsetsize: 8) = 0 We we're not seeing this line: 0.845 ( 0.021 ms): time/16722 wait4(upid: 4294967295, stat_addr: 0x7fff17f443d4, ru: 0x7fff17f44438 ) ... just the one when it finishes: 3.363 ( 2.539 ms): time/16722 ... [continued]: wait4()) = 16723 Still some issues left till we move to ordered_samples when multiple CPUs/threads are involved... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zq9x30a1ky3djqewqn2v3ja3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-13 13:22:21 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: Support ! in -e expressions So that we can ask for all but a set of syscalls to be traced. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9j6hvap23qanyl96wx4mrj9k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-21 12:56:21 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Honor target pid / tid options when analyzing a file Allows capture of raw_syscall events for all processes or threads in a task and then analyzing specific ones. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:53 -06:00
perf trace: Introduce --filter-pids When tracing in X we get event loops due to the tracing activity, i.e. updates to a gnome-terminal that generate syscalls for X.org, etc. To get a more useful view of what is happening, syscall wise, system wide, we need to filter those, like in: # ps ax|egrep '981|2296|1519' | grep -v egrep 981 tty1 Ss+ 5:40 /usr/bin/Xorg :0 -background none ... 1519 ? Sl 2:22 /usr/bin/gnome-shell 2296 ? Sl 4:16 /usr/libexec/gnome-terminal-server # # trace -e write --filter-pids 981,2296,1519 0.385 ( 0.021 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 0.922 ( 0.014 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5006.525 ( 0.029 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 5007.235 ( 0.023 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5177.646 ( 0.018 ms): rtkit-daemon/782 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7f7eea70be88, count: 8) = 8 8314.497 ( 0.004 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af7b0, count: 8) = 8 8314.518 ( 0.002 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af0e0, count: 8) = 8 ^C# When this option is used the tracer pid is also filtered. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f5qmiyy7c0uxdm21ncatpeek@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 11:36:52 -08:00
perf trace: Pack 'struct trace' Initial struct stats: /* size: 368, cachelines: 6, members: 24 */ /* sum members: 353, holes: 3, sum holes: 15 */ /* last cacheline: 48 bytes */ After reorg: [acme@ssdandy linux]$ pahole -C trace ~/bin/trace | tail -4 /* size: 360, cachelines: 6, members: 24 */ /* padding: 7 */ /* last cacheline: 40 bytes */ }; [acme@ssdandy linux]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6jimc80yu89qkx6zb8465s6t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-06 15:43:02 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Add summary only option Per request from Pekka make --summary a summary only option meaning do not show the individual system calls. Add another option to see all syscalls along with the summary. In addition use 's' and 'S' as shortcuts for the options. Requested-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: David Ahern <dsahern@gmail.com> Tested-by: Pekka Enberg <penberg@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 09:31:15 -07:00
perf trace: Add option to show process COMM Enabled by default, disable with --no-comm, e.g.: 181.821 (0.001 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: PEEK|TRUNC|CMSG_CLOEXEC ) = 20 181.824 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.825 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.834 (0.002 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: CMSG_CLOEXEC ) = 20 181.836 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.838 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.705 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 1256 181.710 (0.002 ms): evolution-addr/10924 geteuid( ) = 1000 181.712 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.727 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 1256 181.731 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.734 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.908 (0.002 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 20 181.913 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.915 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.930 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 20 181.934 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.937 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 220.718 (0.010 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.741 (0.000 ms): dbus-daemon/10711 ... [continued]: epoll_wait()) = 1 220.759 (0.004 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.780 (0.002 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.788 (0.001 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = -1 EAGAIN Resource temporarily unavailable 220.760 (0.004 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.771 (0.023 ms): perf/26347 open(filename: 0xf2e780, mode: 15918976 ) = 19 220.850 (0.002 ms): perf/26347 close(fd: 19 ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6be5jvnkdzjptdrebfn5263n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 12:35:21 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Support using -f to override perf.data file ownership Enable perf trace to use perf.data when it is not owned by current user or root. Example: # perf trace record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 4153101 Apr 2 15:28 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f Error: unknown switch `f' usage: perf trace [<options>] [<command>] or: perf trace [<options>] -- <command> [<options>] or: perf trace record [<options>] [<command>] or: perf trace record [<options>] -- <command> [<options>] --event <event> event selector. use 'perf list' to list available events --comm show the thread COMM next to its id --tool_stats show tool stats -e, --expr <expr> list of events to trace -o, --output <file> output file name -i, --input <file> Analyze events in file -p, --pid <pid> trace events on existing process id -t, --tid <tid> trace events on existing thread id --filter-pids <float> ... As shown above, the -f option does not work at all. After this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f 0.056 ( 0.002 ms): ls/47325 brk( ... 0.108 ( 0.018 ms): ls/47325 mmap(len: 4096, prot: READ|WRITE, ... 0.145 ( 0.013 ms): ls/47325 access(filename: 0x7f31259a0eb0, ... 0.172 ( 0.008 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.180 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.185 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.189 ( 0.003 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.195 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.199 ( 0.002 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.205 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.211 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.220 ( 0.007 ms): ls/47325 open(filename: 0x7f312599e8ff, ... ... ... As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-10-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02 21:47:18 +08:00
perf trace: Remember if the vfs_getname tracepoint/kprobe is in place So that we can later decide if we will store where to expand the pathname once we are handling vfs_getname or if we should instead just go on and straight away print the pointer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ytxk5s5jpc50wahffmlxgxuw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 17:01:04 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Split fd -> pathname array handling So that the part that grows the array as needed is untied from the code that reads the /proc/pid/fd symlink and can be used for the vfs_getname hook that will set the fd -> path translation too, when available. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ydo5rumyv9hdc1vsfmqamugs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 17:34:10 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use thread_{,_set}_priv helpers This is mechanical changes only for accounting access to thread->priv properly in the source level. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1412556363-26229-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-06 09:46:03 +09:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Split fd -> pathname array handling So that the part that grows the array as needed is untied from the code that reads the /proc/pid/fd symlink and can be used for the vfs_getname hook that will set the fd -> path translation too, when available. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ydo5rumyv9hdc1vsfmqamugs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 17:34:10 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use thread_{,_set}_priv helpers This is mechanical changes only for accounting access to thread->priv properly in the source level. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1412556363-26229-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-06 09:46:03 +09:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Fix up fd -> pathname resolution There was a brown paper bag bug in the patch that introduced a reference implementation on using 'perf probe' made wannabe tracepoints that broke fd -> pathname resolution, fix it: [root@zoo ~]# perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' Added new event: probe:vfs_getname (on getname_flags:65 with pathname=result->name:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 [root@zoo ~] Before: [acme@zoo linux]$ trace touch -e open,fstat /tmp/b 1.159 ( 0.007 ms): open(filename: 0x7fd73f2fe088, flags: CLOEXEC ) = 3 1.163 ( 0.002 ms): fstat(fd: 3, statbuf: 0x7fff1b25e610 ) = 0 1.192 ( 0.009 ms): open(filename: 0x7fd73f4fedb8, flags: CLOEXEC ) = 3 1.201 ( 0.002 ms): fstat(fd: 3, statbuf: 0x7fff1b25e660 ) = 0 1.501 ( 0.013 ms): open(filename: 0x7fd73f0a1610, flags: CLOEXEC ) = 3 1.505 ( 0.002 ms): fstat(fd: 3, statbuf: 0x7fd73f2ddb60 ) = 0 1.581 ( 0.011 ms): open(filename: 0x7fff1b2603da, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 [acme@zoo linux]$ After: [acme@zoo linux]$ trace touch -e open,fstat,dup2,mmap,close /tmp/b 1.105 ( 0.004 ms): mmap(len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1 ) = 0x2fbf000 1.136 ( 0.008 ms): open(filename: 0x7f8902dbc088, flags: CLOEXEC ) = 3 1.140 ( 0.002 ms): fstat(fd: 3</etc/ld.so.cache>, statbuf: 0x7fff19889ef0 ) = 0 1.146 ( 0.004 ms): mmap(len: 86079, prot: READ, flags: PRIVATE, fd: 3</etc/ld.so.cache> ) = 0x2fa9000 1.149 ( 0.001 ms): close(fd: 3</etc/ld.so.cache> ) = 0 1.170 ( 0.010 ms): open(filename: 0x7f8902fbcdb8, flags: CLOEXEC ) = 3 1.178 ( 0.002 ms): fstat(fd: 3</lib64/libc.so.6>, statbuf: 0x7fff19889f40 ) = 0 1.188 ( 0.006 ms): mmap(len: 3924576, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3</lib64/libc.so.6>) = 0x29e2000 1.207 ( 0.007 ms): mmap(addr: 0x7f8902d96000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3</lib64/libc.so.6>, off: 1785856) = 0x2d96000 1.217 ( 0.004 ms): mmap(addr: 0x7f8902d9c000, len: 16992, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: -1) = 0x2d9c000 1.228 ( 0.002 ms): close(fd: 3</lib64/libc.so.6> ) = 0 1.243 ( 0.003 ms): mmap(len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1 ) = 0x2fa8000 1.250 ( 0.003 ms): mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1 ) = 0x2fa6000 1.452 ( 0.010 ms): open(filename: 0x7f8902b5f610, flags: CLOEXEC ) = 3 1.455 ( 0.002 ms): fstat(fd: 3</usr/lib/locale/locale-archive>, statbuf: 0x7f8902d9bb60 ) = 0 1.461 ( 0.004 ms): mmap(len: 106070960, prot: READ, flags: PRIVATE, fd: 3</usr/lib/locale/locale-archive>) = 0xfc4b9000 1.469 ( 0.002 ms): close(fd: 3</usr/lib/locale/locale-archive> ) = 0 1.528 ( 0.010 ms): open(filename: 0x7fff1988c3da, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 1.532 ( 0.002 ms): dup2(oldfd: 3</tmp/b> ) = 0 1.535 ( 0.001 ms): close(fd: 3</tmp/b> ) = 0 1.544 ( 0.001 ms): close( ) = 0 1.555 ( 0.001 ms): close(fd: 1 ) = 0 1.558 ( 0.001 ms): close(fd: 2 ) = 0 [acme@zoo linux]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vcm22xpjxc3j4hbyuzjzf7ik@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-10 16:00:18 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Fix up fd -> pathname resolution There was a brown paper bag bug in the patch that introduced a reference implementation on using 'perf probe' made wannabe tracepoints that broke fd -> pathname resolution, fix it: [root@zoo ~]# perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' Added new event: probe:vfs_getname (on getname_flags:65 with pathname=result->name:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 [root@zoo ~] Before: [acme@zoo linux]$ trace touch -e open,fstat /tmp/b 1.159 ( 0.007 ms): open(filename: 0x7fd73f2fe088, flags: CLOEXEC ) = 3 1.163 ( 0.002 ms): fstat(fd: 3, statbuf: 0x7fff1b25e610 ) = 0 1.192 ( 0.009 ms): open(filename: 0x7fd73f4fedb8, flags: CLOEXEC ) = 3 1.201 ( 0.002 ms): fstat(fd: 3, statbuf: 0x7fff1b25e660 ) = 0 1.501 ( 0.013 ms): open(filename: 0x7fd73f0a1610, flags: CLOEXEC ) = 3 1.505 ( 0.002 ms): fstat(fd: 3, statbuf: 0x7fd73f2ddb60 ) = 0 1.581 ( 0.011 ms): open(filename: 0x7fff1b2603da, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 [acme@zoo linux]$ After: [acme@zoo linux]$ trace touch -e open,fstat,dup2,mmap,close /tmp/b 1.105 ( 0.004 ms): mmap(len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1 ) = 0x2fbf000 1.136 ( 0.008 ms): open(filename: 0x7f8902dbc088, flags: CLOEXEC ) = 3 1.140 ( 0.002 ms): fstat(fd: 3</etc/ld.so.cache>, statbuf: 0x7fff19889ef0 ) = 0 1.146 ( 0.004 ms): mmap(len: 86079, prot: READ, flags: PRIVATE, fd: 3</etc/ld.so.cache> ) = 0x2fa9000 1.149 ( 0.001 ms): close(fd: 3</etc/ld.so.cache> ) = 0 1.170 ( 0.010 ms): open(filename: 0x7f8902fbcdb8, flags: CLOEXEC ) = 3 1.178 ( 0.002 ms): fstat(fd: 3</lib64/libc.so.6>, statbuf: 0x7fff19889f40 ) = 0 1.188 ( 0.006 ms): mmap(len: 3924576, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3</lib64/libc.so.6>) = 0x29e2000 1.207 ( 0.007 ms): mmap(addr: 0x7f8902d96000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3</lib64/libc.so.6>, off: 1785856) = 0x2d96000 1.217 ( 0.004 ms): mmap(addr: 0x7f8902d9c000, len: 16992, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: -1) = 0x2d9c000 1.228 ( 0.002 ms): close(fd: 3</lib64/libc.so.6> ) = 0 1.243 ( 0.003 ms): mmap(len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1 ) = 0x2fa8000 1.250 ( 0.003 ms): mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1 ) = 0x2fa6000 1.452 ( 0.010 ms): open(filename: 0x7f8902b5f610, flags: CLOEXEC ) = 3 1.455 ( 0.002 ms): fstat(fd: 3</usr/lib/locale/locale-archive>, statbuf: 0x7f8902d9bb60 ) = 0 1.461 ( 0.004 ms): mmap(len: 106070960, prot: READ, flags: PRIVATE, fd: 3</usr/lib/locale/locale-archive>) = 0xfc4b9000 1.469 ( 0.002 ms): close(fd: 3</usr/lib/locale/locale-archive> ) = 0 1.528 ( 0.010 ms): open(filename: 0x7fff1988c3da, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 1.532 ( 0.002 ms): dup2(oldfd: 3</tmp/b> ) = 0 1.535 ( 0.001 ms): close(fd: 3</tmp/b> ) = 0 1.544 ( 0.001 ms): close( ) = 0 1.555 ( 0.001 ms): close(fd: 1 ) = 0 1.558 ( 0.001 ms): close(fd: 2 ) = 0 [acme@zoo linux]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vcm22xpjxc3j4hbyuzjzf7ik@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-10 16:00:18 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Use thread_{,_set}_priv helpers This is mechanical changes only for accounting access to thread->priv properly in the source level. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1412556363-26229-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-06 09:46:03 +09:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf tools: Introduce zfree For the frequent idiom of: free(ptr); ptr = NULL; Make it expect a pointer to the pointer being freed, so that it becomes clear at first sight that the variable being freed is being modified. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-pfw02ezuab37kha18wlut7ir@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-26 17:41:15 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Add duration filter Example: [acme@sandy linux]$ perf trace --duration 0.025 usleep 1 2.221 ( 0.958 ms): 6724 execve(arg0: 140733557168278, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = -2 3.690 ( 1.443 ms): 6724 execve(arg0: 140733557168295, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = 0 3.979 ( 0.048 ms): 6724 open(filename: 208733843841, flags: 0, mode: 1 ) = 3 4.071 ( 0.075 ms): 6724 open(filename: 139744419925673, flags: 0, mode: 0 ) = 3 4.318 ( 0.056 ms): 6724 nanosleep(rqtp: 140734030404608, rmtp: 0 ) = 0 [acme@sandy linux]$ perf trace --duration 0.100 usleep 1 1.143 ( 1.021 ms): 6726 execve(arg0: 140736323962279, arg1: 140736323972752, arg2: 34926752, arg3: 140736323961824, arg4: 7955998171588342573, arg5: 6725) = 0 [acme@sandy linux]$ Cherry picked from tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-oslw2j2958we9qf0ctra4whd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-08 09:56:00 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add option to show process COMM Enabled by default, disable with --no-comm, e.g.: 181.821 (0.001 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: PEEK|TRUNC|CMSG_CLOEXEC ) = 20 181.824 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.825 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.834 (0.002 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: CMSG_CLOEXEC ) = 20 181.836 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.838 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.705 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 1256 181.710 (0.002 ms): evolution-addr/10924 geteuid( ) = 1000 181.712 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.727 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 1256 181.731 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.734 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.908 (0.002 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 20 181.913 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.915 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.930 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 20 181.934 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.937 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 220.718 (0.010 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.741 (0.000 ms): dbus-daemon/10711 ... [continued]: epoll_wait()) = 1 220.759 (0.004 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.780 (0.002 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.788 (0.001 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = -1 EAGAIN Resource temporarily unavailable 220.760 (0.004 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.771 (0.023 ms): perf/26347 open(filename: 0xf2e780, mode: 15918976 ) = 19 220.850 (0.002 ms): perf/26347 close(fd: 19 ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6be5jvnkdzjptdrebfn5263n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 12:35:21 -03:00
perf tools: Add new COMM infrastructure This new COMM infrastructure provides two features: 1) It keeps track of all comms lifecycle for a given thread. This way we can associate a timeframe to any thread COMM, as long as PERF_SAMPLE_TIME samples are joined to COMM and fork events. As a result we should have more precise COMM sorted hists with seperated entries for pre and post exec time after a fork. 2) It also makes sure that a given COMM string is not duplicated but rather shared among the threads that refer to it. This way the threads COMM can be compared against pointer values from the sort infrastructure. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-hwjf70b2wve9m2kosxiq8bb3@git.kernel.org [ Rename some accessor functions ] Signed-off-by: Namhyung Kim <namhyung@kernel.org> [ Use __ as separator for class__method for private comm_str methods ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-11 16:56:44 +02:00
perf tools: struct thread has a tid not a pid As evident from 'machine__process_fork_event()' and 'machine__process_exit_event()' the 'pid' member of struct thread is actually the tid. Rename 'pid' to 'tid' in struct thread accordingly. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1372944040-32690-13-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-07-04 16:20:31 +03:00
perf trace: Add option to show process COMM Enabled by default, disable with --no-comm, e.g.: 181.821 (0.001 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: PEEK|TRUNC|CMSG_CLOEXEC ) = 20 181.824 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.825 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.834 (0.002 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: CMSG_CLOEXEC ) = 20 181.836 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.838 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.705 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 1256 181.710 (0.002 ms): evolution-addr/10924 geteuid( ) = 1000 181.712 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.727 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 1256 181.731 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.734 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.908 (0.002 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 20 181.913 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.915 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.930 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 20 181.934 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.937 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 220.718 (0.010 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.741 (0.000 ms): dbus-daemon/10711 ... [continued]: epoll_wait()) = 1 220.759 (0.004 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.780 (0.002 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.788 (0.001 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = -1 EAGAIN Resource temporarily unavailable 220.760 (0.004 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.771 (0.023 ms): perf/26347 open(filename: 0xf2e780, mode: 15918976 ) = 19 220.850 (0.002 ms): perf/26347 close(fd: 19 ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6be5jvnkdzjptdrebfn5263n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 12:35:21 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf tools: Add time argument on COMM setting This way we can later delimit a lifecycle for the COMM and map a hist to a precise COMM:timeslice couple. PERF_RECORD_COMM and PERF_RECORD_FORK events that don't have PERF_SAMPLE_TIME samples can only send 0 value as a timestamp and thus should overwrite any previous COMM on a given thread because there is no sensible way to keep track of all the comms lifecycles in a thread without time informations. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6tyow99vgmmtt9qwr2u2lqd7@git.kernel.org [ Made it cope with PERF_RECORD_MMAP2 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-11 16:18:24 +02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf tools: Add time argument on COMM setting This way we can later delimit a lifecycle for the COMM and map a hist to a precise COMM:timeslice couple. PERF_RECORD_COMM and PERF_RECORD_FORK events that don't have PERF_SAMPLE_TIME samples can only send 0 value as a timestamp and thus should overwrite any previous COMM on a given thread because there is no sensible way to keep track of all the comms lifecycles in a thread without time informations. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6tyow99vgmmtt9qwr2u2lqd7@git.kernel.org [ Made it cope with PERF_RECORD_MMAP2 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-11 16:18:24 +02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf tools: Add time argument on COMM setting This way we can later delimit a lifecycle for the COMM and map a hist to a precise COMM:timeslice couple. PERF_RECORD_COMM and PERF_RECORD_FORK events that don't have PERF_SAMPLE_TIME samples can only send 0 value as a timestamp and thus should overwrite any previous COMM on a given thread because there is no sensible way to keep track of all the comms lifecycles in a thread without time informations. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6tyow99vgmmtt9qwr2u2lqd7@git.kernel.org [ Made it cope with PERF_RECORD_MMAP2 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-11 16:18:24 +02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf tools: Add time argument on COMM setting This way we can later delimit a lifecycle for the COMM and map a hist to a precise COMM:timeslice couple. PERF_RECORD_COMM and PERF_RECORD_FORK events that don't have PERF_SAMPLE_TIME samples can only send 0 value as a timestamp and thus should overwrite any previous COMM on a given thread because there is no sensible way to keep track of all the comms lifecycles in a thread without time informations. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6tyow99vgmmtt9qwr2u2lqd7@git.kernel.org [ Made it cope with PERF_RECORD_MMAP2 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-11 16:18:24 +02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf tools: Add time argument on COMM setting This way we can later delimit a lifecycle for the COMM and map a hist to a precise COMM:timeslice couple. PERF_RECORD_COMM and PERF_RECORD_FORK events that don't have PERF_SAMPLE_TIME samples can only send 0 value as a timestamp and thus should overwrite any previous COMM on a given thread because there is no sensible way to keep track of all the comms lifecycles in a thread without time informations. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6tyow99vgmmtt9qwr2u2lqd7@git.kernel.org [ Made it cope with PERF_RECORD_MMAP2 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-11 16:18:24 +02:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf tools: Check recorded kernel version when finding vmlinux Currently vmlinux_path__init() only tries to find vmlinux file from current directory, /boot and some canonical directories with version number of the running kernel. This can be a problem when reporting old data recorded on a kernel version not running currently. We can use --symfs option for this but it's annoying for user to do it always. As we already have the info in the perf.data file, it can be changed to use it for the search automatically. Before: $ perf report ... # Samples: 4K of event 'cpu-clock' # Event count (approx.): 1067250000 # # Overhead Command Shared Object Symbol # ........ .......... ................. .............................. 71.87% swapper [kernel.kallsyms] [k] recover_probed_instruction After: # Overhead Command Shared Object Symbol # ........ .......... ................. .................... 71.87% swapper [kernel.kallsyms] [k] native_safe_halt This requires to change signature of symbol__init() to receive struct perf_session_env *. Reported-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1407825645-24586-14-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-12 15:40:45 +09:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Fix comm resolution when reading events from file Task comm's are getting lost when processing events from a file. The problem is that the trace struct used by the live processing has its host machine and the perf-session used for file based processing has its host machine. Fix by having both references point to the same machine. Before: 0.030 ( 0.001 ms): :27743/27743 brk( ... 0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... After: 0.030 ( 0.001 ms): make/27743 brk( ... 0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com [ Moved creation of new host machine to a separate constructor: machine__new_host() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:00 -06:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf python: Remove dependency on 'machine' methods The python binding still doesn't provide symbol resolving facilities, but the recent addition of the trace_event__register_resolver() function made it add as a dependency the machine__resolve_kernel_addr() method, that in turn drags all the symbol resolving code. The problem: [root@zoo ~]# perf test -v python 17: Try 'import perf' in python, checking link problems : --- start --- test child forked, pid 6853 Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /tmp/build/perf/python/perf.so: undefined symbol: machine__resolve_kernel_addr test child finished with -1 ---- end ---- Try 'import perf' in python, checking link problems: FAILED! [root@zoo ~]# Fix it by requiring this function to receive the resolver as a parameter, just like pevent_register_function_resolver(), i.e. do not explicitely refer to an object file not included in tools/perf/util/python-ext-sources. [root@zoo ~]# perf test python 17: Try 'import perf' in python, checking link problems : Ok [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Fixes: c3168b0db93a ("perf symbols: Provide libtraceevent callback to resolve kernel symbols") Link: http://lkml.kernel.org/n/tip-vxlhh95v2em9zdbgj3jm7xi5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-24 12:13:05 -03:00
perf trace: Provide libtracevent with a kernel symbol resolver So that beautifiers wanting to resolve kernel function addresses to names can do its work, now, for instance, the 'timer' tracepoints beautifiers works with 'perf trace', see the "function=tick..." part: # perf trace --event timer:hrtimer_start <SNIP> 0.000 timer:hrtimer_start:hrtimer=0xffff88026f3101c0 function=tick_sched_timer/0x0 expires=52098339000000 softexpires=52098339000000) 0.003 timer:hrtimer_start:hrtimer=0xffff88026f3101c0 function=tick_sched_timer/0x0 expires=52098339000000 softexpires=52098339000000) <SNIP> Reported-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-n4i0hxpbl1tnleiqkok47fw2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-22 16:16:16 -03:00
perf machine: Simplify synthesize_threads method Several tools (top, kvm) don't need to be called back to process each of the syntheiszed records, instead relying on the machine__process_event function to change the per machine data structures that represent threads and mmaps, so provide a way to ask for this common idiom. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-pusqibp8n3c4ynegd1frn4zd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-11 11:36:12 -03:00
perf tools: Configurable per thread proc map processing time out The time out to limit the individual proc map processing was hard code to 500ms. This patch introduce a new option --proc-map-timeout to make the time limit configurable. Signed-off-by: Kan Liang <kan.liang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ying Huang <ying.huang@intel.com> Link: http://lkml.kernel.org/r/1434549071-25611-2-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-17 09:51:11 -04:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: Handle legacy syscalls tracepoints Currently the code skips the first field with the expectation that it is 'nr'. But older kernels do not have the 'nr' field: field:int nr; offset:8; size:4; signed:1; Change perf-trace to drop the field if it exists after parsing the format file. This fixes the off-by-one problem with older kernels (e.g., RHEL6). e.g, perf-trace shows this for write: 1.515 ( 0.006 ms): dd/4245 write(buf: 2</dev/pts/0>, count: 140733837536224 ) = 26 where 2 is really the fd, the huge number is really the buf address, etc. With this patch you get the more appropriate: 1.813 ( 0.003 ms): dd/6330 write(fd: 2</dev/pts/0>, buf: 0x7fff22fc81f0, count: 25) = 25 Based-on-a-patch-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gvpdave4u2yq2jnzbcdznpvf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-20 17:46:53 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Handle legacy syscalls tracepoints Currently the code skips the first field with the expectation that it is 'nr'. But older kernels do not have the 'nr' field: field:int nr; offset:8; size:4; signed:1; Change perf-trace to drop the field if it exists after parsing the format file. This fixes the off-by-one problem with older kernels (e.g., RHEL6). e.g, perf-trace shows this for write: 1.515 ( 0.006 ms): dd/4245 write(buf: 2</dev/pts/0>, count: 140733837536224 ) = 26 where 2 is really the fd, the huge number is really the buf address, etc. With this patch you get the more appropriate: 1.813 ( 0.003 ms): dd/6330 write(fd: 2</dev/pts/0>, buf: 0x7fff22fc81f0, count: 25) = 25 Based-on-a-patch-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gvpdave4u2yq2jnzbcdznpvf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-20 17:46:53 -03:00
perf trace: Allow overiding the formatting of syscall fields The mmap syscalls, for instance, don't have the FORMAT_IS_POINTER for its pointer arguments, override it. This also paves the way for more specialized argument beautifiers, like for mmap's prot and flags arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mm864hvhrpt39muxmmbtjasz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 12:29:38 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Validate syscall id before growing syscall table In some cases the ID for a syscall read thru the raw_syscalls tracepoint is bogus, still needs to be investigated why, but to make the tool more robust first try to resolve the ID to a name via libaudit and if it fails, don't grow the table. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0lsokw3xor7c4ijo45u6bauh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-20 12:39:03 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Validate syscall id before growing syscall table In some cases the ID for a syscall read thru the raw_syscalls tracepoint is bogus, still needs to be investigated why, but to make the tool more robust first try to resolve the ID to a name via libaudit and if it fails, don't grow the table. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0lsokw3xor7c4ijo45u6bauh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-20 12:39:03 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Validate syscall id before growing syscall table In some cases the ID for a syscall read thru the raw_syscalls tracepoint is bogus, still needs to be investigated why, but to make the tool more robust first try to resolve the ID to a name via libaudit and if it fails, don't grow the table. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0lsokw3xor7c4ijo45u6bauh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-20 12:39:03 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf tools: Add trace-event global object for tracepoint interface In order to get the proper plugins processing we need to use full trace-event interface when creating tracepoint events. So far we were using shortcut to get the parsed format. Moving current 'event_format__new' function into trace-event object as 'trace_event__tp_format'. This function uses properly initialized global trace-event object, ensuring proper plugins processing. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1386076182-14484-11-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-03 14:09:24 +01:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf evsel: Propagate error info from tp_format Propagate error info from tp_format via ERR_PTR to get it all the way down to the parse-event.c tracepoint adding routines. Following functions now return pointer with encoded error: - tp_format - trace_event__tp_format - perf_evsel__newtp_idx - perf_evsel__newtp This affects several other places in perf, that cannot use pointer check anymore, but must utilize the err.h interface, when getting error information from above functions list. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Link: http://lkml.kernel.org/r/1441615087-13886-5-git-send-email-jolsa@kernel.org [ Add two missing ERR_PTR() and one IS_ERR() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-07 10:38:06 +02:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf tools: Add trace-event global object for tracepoint interface In order to get the proper plugins processing we need to use full trace-event interface when creating tracepoint events. So far we were using shortcut to get the parsed format. Moving current 'event_format__new' function into trace-event object as 'trace_event__tp_format'. This function uses properly initialized global trace-event object, ensuring proper plugins processing. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1386076182-14484-11-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-03 14:09:24 +01:00
perf trace: Add aliases for some syscalls What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-27 13:16:00 -03:00
perf evsel: Propagate error info from tp_format Propagate error info from tp_format via ERR_PTR to get it all the way down to the parse-event.c tracepoint adding routines. Following functions now return pointer with encoded error: - tp_format - trace_event__tp_format - perf_evsel__newtp_idx - perf_evsel__newtp This affects several other places in perf, that cannot use pointer check anymore, but must utilize the err.h interface, when getting error information from above functions list. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Link: http://lkml.kernel.org/r/1441615087-13886-5-git-send-email-jolsa@kernel.org [ Add two missing ERR_PTR() and one IS_ERR() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-07 10:38:06 +02:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: Handle legacy syscalls tracepoints Currently the code skips the first field with the expectation that it is 'nr'. But older kernels do not have the 'nr' field: field:int nr; offset:8; size:4; signed:1; Change perf-trace to drop the field if it exists after parsing the format file. This fixes the off-by-one problem with older kernels (e.g., RHEL6). e.g, perf-trace shows this for write: 1.515 ( 0.006 ms): dd/4245 write(buf: 2</dev/pts/0>, count: 140733837536224 ) = 26 where 2 is really the fd, the huge number is really the buf address, etc. With this patch you get the more appropriate: 1.813 ( 0.003 ms): dd/6330 write(fd: 2</dev/pts/0>, buf: 0x7fff22fc81f0, count: 25) = 25 Based-on-a-patch-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gvpdave4u2yq2jnzbcdznpvf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-20 17:46:53 -03:00
perf trace: Cache the is_exit syscall test No need to use two strcmp calls per syscall entry, do it just once, when reading the per syscall info. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lymtxhz0mg3adyt5e2pssn8f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-17 14:29:24 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Handle legacy syscalls tracepoints Currently the code skips the first field with the expectation that it is 'nr'. But older kernels do not have the 'nr' field: field:int nr; offset:8; size:4; signed:1; Change perf-trace to drop the field if it exists after parsing the format file. This fixes the off-by-one problem with older kernels (e.g., RHEL6). e.g, perf-trace shows this for write: 1.515 ( 0.006 ms): dd/4245 write(buf: 2</dev/pts/0>, count: 140733837536224 ) = 26 where 2 is really the fd, the huge number is really the buf address, etc. With this patch you get the more appropriate: 1.813 ( 0.003 ms): dd/6330 write(fd: 2</dev/pts/0>, buf: 0x7fff22fc81f0, count: 25) = 25 Based-on-a-patch-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gvpdave4u2yq2jnzbcdznpvf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-20 17:46:53 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: Handle legacy syscalls tracepoints Currently the code skips the first field with the expectation that it is 'nr'. But older kernels do not have the 'nr' field: field:int nr; offset:8; size:4; signed:1; Change perf-trace to drop the field if it exists after parsing the format file. This fixes the off-by-one problem with older kernels (e.g., RHEL6). e.g, perf-trace shows this for write: 1.515 ( 0.006 ms): dd/4245 write(buf: 2</dev/pts/0>, count: 140733837536224 ) = 26 where 2 is really the fd, the huge number is really the buf address, etc. With this patch you get the more appropriate: 1.813 ( 0.003 ms): dd/6330 write(fd: 2</dev/pts/0>, buf: 0x7fff22fc81f0, count: 25) = 25 Based-on-a-patch-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gvpdave4u2yq2jnzbcdznpvf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-20 17:46:53 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Don't supress zeroed args when there is an strarray entry for it Case in hand: 9.682 ( 0.001 ms): Xorg/13079 setitimer(which: REAL, value: 0x7fffede42470) = 0 ITIMER_REAL is zero. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6hnoqsjh99t4hxi3xu2nlwep@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:19:41 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Don't supress zeroed args when there is an strarray entry for it Case in hand: 9.682 ( 0.001 ms): Xorg/13079 setitimer(which: REAL, value: 0x7fffede42470) = 0 ITIMER_REAL is zero. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6hnoqsjh99t4hxi3xu2nlwep@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-20 12:19:41 -03:00
perf trace: Don't print zeroed args This way we make the output more compact. If somebody complain (and provide a sane reason why we would like to see zeroes) we can make it an optional, ~/.perfconfig configurable knob. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-myqozw43hk8z2r5hsupzdk82@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 11:27:34 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Allow passing parms to arg formatters So that we can have generic formatters that act upon specific parameters. Start using them with a simple string table that assumes entries will be indexes to a string table, like with the 'which' parm for the set and getitimer syscalls Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 15:50:28 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: Introduce syscall arg formatters Starting with one for printing pointers in hexadecimal, using the information in the syscall tracepoint format. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-23 18:14:48 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Allow syscall arg formatters to mask args The futex syscall ignores some arguments according to the 'operation' arg, so allow arg formatters to mask those. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-abqrg3oldgfsdnltfrvso9f7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-02 10:39:21 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Put syscall formatter parms into struct So that we can add more state to formatters without having to modify all of them. Example is to pass a table to a generic string formatter, like for setitimer 'which' arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 12:20:12 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Fix SIGBUS failures due to misaligned accesses On Sparc64 perf-trace is failing in many spots due to extended load instructions being used on misaligned accesses. (gdb) run trace ls Starting program: /tmp/perf/perf trace ls [Thread debugging using libthread_db enabled] Detaching after fork from child process 169460. <ls output removed> Program received signal SIGBUS, Bus error. 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 warning: Source file is more recent than executable. 61 TP_UINT_FIELD(64); (gdb) bt 0 0x000000000014f4dc in tp_field__u64 (field=0x4cc700, sample=0x7feffffa098) at builtin-trace.c:61 1 0x0000000000156ad4 in trace__sys_exit (trace=0x7feffffc268, evsel=0x4cc580, event=0xfffffc0104912000, sample=0x7feffffa098) at builtin-trace.c:1701 2 0x0000000000158c14 in trace__run (trace=0x7feffffc268, argc=1, argv=0x7fefffff360) at builtin-trace.c:2160 3 0x000000000015b78c in cmd_trace (argc=1, argv=0x7fefffff360, prefix=0x0) at builtin-trace.c:2609 4 0x0000000000107d94 in run_builtin (p=0x4549c8, argc=2, argv=0x7fefffff360) at perf.c:341 5 0x0000000000108140 in handle_internal_command (argc=2, argv=0x7fefffff360) at perf.c:400 6 0x0000000000108308 in run_argv (argcp=0x7feffffef2c, argv=0x7feffffef20) at perf.c:444 7 0x0000000000108728 in main (argc=2, argv=0x7fefffff360) at perf.c:559 (gdb) p *sample $1 = {ip = 4391276, pid = 169472, tid = 169472, time = 6303014583281250, addr = 0, id = 72082, stream_id = 18446744073709551615, period = 1, weight = 0, transaction = 0, cpu = 73, raw_size = 36, data_src = 84410401, flags = 0, insn_len = 0, raw_data = 0xfffffc010491203c, callchain = 0x0, branch_stack = 0x0, user_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, intr_regs = {abi = 0, mask = 0, regs = 0x0, cache_regs = 0x7feffffa098, cache_mask = 0}, user_stack = { offset = 0, size = 0, data = 0x0}, read = {time_enabled = 0, time_running = 0, {group = {nr = 0, values = 0x0}, one = {value = 0, id = 0}}}} (gdb) p *field $2 = {offset = 16, {integer = 0x14f4a8 <tp_field__u64>, pointer = 0x14f4a8 <tp_field__u64>}} sample->raw_data is guaranteed to not be 8-byte aligned because it is preceded by the size as a u3. So accessing raw data with an extended load instruction causes the SIGBUS. Resolve by using memcpy to a temporary variable of appropriate size. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424376022-140608-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 15:00:22 -05:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Add perf_event parameter to tracepoint_handler It will be used by next pagefault tracing patches in the series. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:24 +04:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Hide sys_exit messages about syscall id = -1 That was reproduced via ftrace as described in this cset comment log, need to investigate further. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-n1i3m0vo6mgq3ddjj95sls2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-22 17:55:25 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Add --verbose option Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ain6q4u8g3bpnh18yhw24v2x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-22 16:49:54 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Handle multiple threads better wrt syscalls being intermixed $ trace time taskset -c 0 usleep 1 0.845 ( 0.021 ms): time/16722 wait4(upid: 4294967295, stat_addr: 0x7fff17f443d4, ru: 0x7fff17f44438 ) ... 0.865 ( 0.008 ms): time/16723 execve(arg0: 140733595272004, arg1: 140733595272720, arg2: 140733595272768, arg3: 139755107218496, arg4: 7307199665339051828, arg5: 3) = -2 2.395 ( 1.523 ms): taskset/16723 execve(arg0: 140733595272013, arg1: 140733595272720, arg2: 140733595272768, arg3: 139755107218496, arg4: 7307199665339051828, arg5: 3) = 0 2.411 ( 0.002 ms): taskset/16723 brk( ) = 0x1915000 3.300 ( 0.058 ms): usleep/16723 nanosleep(rqtp: 0x7ffff4ada190 ) = 0 <SNIP> 3.305 ( 0.000 ms): usleep/16723 exit_group( 3.363 ( 2.539 ms): time/16722 ... [continued]: wait4()) = 16723 3.366 ( 0.001 ms): time/16722 rt_sigaction(sig: INT, act: 0x7fff17f44160, oact: 0x7fff17f44200, sigsetsize: 8) = 0 We we're not seeing this line: 0.845 ( 0.021 ms): time/16722 wait4(upid: 4294967295, stat_addr: 0x7fff17f443d4, ru: 0x7fff17f44438 ) ... just the one when it finishes: 3.363 ( 2.539 ms): time/16722 ... [continued]: wait4()) = 16723 Still some issues left till we move to ordered_samples when multiple CPUs/threads are involved... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zq9x30a1ky3djqewqn2v3ja3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-13 13:22:21 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Add perf_event parameter to tracepoint_handler It will be used by next pagefault tracing patches in the series. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:24 +04:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Fix comm resolution when reading events from file Task comm's are getting lost when processing events from a file. The problem is that the trace struct used by the live processing has its host machine and the perf-session used for file based processing has its host machine. Fix by having both references point to the same machine. Before: 0.030 ( 0.001 ms): :27743/27743 brk( ... 0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... After: 0.030 ( 0.001 ms): make/27743 brk( ... 0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com [ Moved creation of new host machine to a separate constructor: machine__new_host() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:00 -06:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Use a constant for the syscall formatting buffer We were using it as a magic number, 1024, fix that. Eventually we need to stop doing it per line, and do it per arg, traversing the args at output time, to avoid the memmove() calls that will be used in the next cset to replace pointers present at raw_syscalls:sys_enter time with its contents that appear at probe:vfs_getname time, before raw_syscalls:sys_exit time. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4sz3wid39egay1pp8qmbur4u@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:17:29 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Fix summary_only option The intent of the -s/--summary-only option is to just show a summary of the system calls and statistics without any of the individual events. Commit e596663ebb2 broke that by showing the interrupted lines: perf trace -i perf.data -s ... 0.741 ( 0.000 ms): sleep/31316 fstat(fd: 4, statbuf: 0x7ffc75ceb830 ) ... 0.744 ( 0.000 ms): sleep/31316 mmap(len: 100244, prot: READ, flags: PRIVATE, fd: 4 ) ... 0.747 ( 0.000 ms): perf/31315 write(fd: 3, buf: 0x7d4bb0, count: 8 ) ... ... Fix by checking for the summary only option. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1426789383-19023-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-19 12:23:03 -06:00
perf trace: Fix syscall enter formatting bug commit e596663ebb28a068f5cca57f83285b7b293a2c83 Author: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Fri Feb 13 13:22:21 2015 -0300 perf trace: Handle multiple threads better wrt syscalls being intermixed Introduced a bug where it considered the number of bytes output directly to the output file when formatting the syscall entry buffer that is stored to be finally printed at syscall exit, ending up leaving garbage at the start of syscalls that appeared while another syscall was being processed, in another thread. Fix it. Example of garbage in the output before this patch: 4280.102 ( 0.000 ms): lsmd/763 ... [continued]: select()) = 0 Timeout 4280.107 (275.250 ms): tuned/852 select(tvp: 0x7f41f7ffde50 ) ... 4280.109 ( 0.002 ms): lsmd/763 Xl�� ) = -10 4639.197 ( 0.000 ms): systemd-journa/542 ... [continued]: epoll_wait()) = 1 4639.202 (359.088 ms): lsmd/763 select(n: 6, inp: 0x7ffff21daad0, tvp: 0x7ffff21daac0) ... 4639.207 ( 0.005 ms): systemd-journa/542 Hn�� ) = 106 4639.221 ( 0.002 ms): systemd-journa/542 uname(name: 0x7ffdbaed8e00) = 0 4639.271 ( 0.008 ms): systemd-journa/542 ftruncate(fd: 11</run/log/journal/60cd52417cf440a4a80107518bbd3c20/system.journal>, length: 50331648) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9ckfe8mvsedgkg6y80gz1ul8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-25 18:01:15 -03:00
perf trace: Handle multiple threads better wrt syscalls being intermixed $ trace time taskset -c 0 usleep 1 0.845 ( 0.021 ms): time/16722 wait4(upid: 4294967295, stat_addr: 0x7fff17f443d4, ru: 0x7fff17f44438 ) ... 0.865 ( 0.008 ms): time/16723 execve(arg0: 140733595272004, arg1: 140733595272720, arg2: 140733595272768, arg3: 139755107218496, arg4: 7307199665339051828, arg5: 3) = -2 2.395 ( 1.523 ms): taskset/16723 execve(arg0: 140733595272013, arg1: 140733595272720, arg2: 140733595272768, arg3: 139755107218496, arg4: 7307199665339051828, arg5: 3) = 0 2.411 ( 0.002 ms): taskset/16723 brk( ) = 0x1915000 3.300 ( 0.058 ms): usleep/16723 nanosleep(rqtp: 0x7ffff4ada190 ) = 0 <SNIP> 3.305 ( 0.000 ms): usleep/16723 exit_group( 3.363 ( 2.539 ms): time/16722 ... [continued]: wait4()) = 16723 3.366 ( 0.001 ms): time/16722 rt_sigaction(sig: INT, act: 0x7fff17f44160, oact: 0x7fff17f44200, sigsetsize: 8) = 0 We we're not seeing this line: 0.845 ( 0.021 ms): time/16722 wait4(upid: 4294967295, stat_addr: 0x7fff17f443d4, ru: 0x7fff17f44438 ) ... just the one when it finishes: 3.363 ( 2.539 ms): time/16722 ... [continued]: wait4()) = 16723 Still some issues left till we move to ordered_samples when multiple CPUs/threads are involved... Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zq9x30a1ky3djqewqn2v3ja3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-13 13:22:21 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Use a constant for the syscall formatting buffer We were using it as a magic number, 1024, fix that. Eventually we need to stop doing it per line, and do it per arg, traversing the args at output time, to avoid the memmove() calls that will be used in the next cset to replace pointers present at raw_syscalls:sys_enter time with its contents that appear at probe:vfs_getname time, before raw_syscalls:sys_exit time. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4sz3wid39egay1pp8qmbur4u@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:17:29 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Use a constant for the syscall formatting buffer We were using it as a magic number, 1024, fix that. Eventually we need to stop doing it per line, and do it per arg, traversing the args at output time, to avoid the memmove() calls that will be used in the next cset to replace pointers present at raw_syscalls:sys_enter time with its contents that appear at probe:vfs_getname time, before raw_syscalls:sys_exit time. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4sz3wid39egay1pp8qmbur4u@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:17:29 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Cache the is_exit syscall test No need to use two strcmp calls per syscall entry, do it just once, when reading the per syscall info. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lymtxhz0mg3adyt5e2pssn8f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-17 14:29:24 -03:00
perf trace: Add summary only option Per request from Pekka make --summary a summary only option meaning do not show the individual system calls. Add another option to see all syscalls along with the summary. In addition use 's' and 'S' as shortcuts for the options. Requested-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: David Ahern <dsahern@gmail.com> Tested-by: Pekka Enberg <penberg@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 09:31:15 -07:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Add duration filter Example: [acme@sandy linux]$ perf trace --duration 0.025 usleep 1 2.221 ( 0.958 ms): 6724 execve(arg0: 140733557168278, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = -2 3.690 ( 1.443 ms): 6724 execve(arg0: 140733557168295, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = 0 3.979 ( 0.048 ms): 6724 open(filename: 208733843841, flags: 0, mode: 1 ) = 3 4.071 ( 0.075 ms): 6724 open(filename: 139744419925673, flags: 0, mode: 0 ) = 3 4.318 ( 0.056 ms): 6724 nanosleep(rqtp: 140734030404608, rmtp: 0 ) = 0 [acme@sandy linux]$ perf trace --duration 0.100 usleep 1 1.143 ( 1.021 ms): 6726 execve(arg0: 140736323962279, arg1: 140736323972752, arg2: 34926752, arg3: 140736323961824, arg4: 7955998171588342573, arg5: 6725) = 0 [acme@sandy linux]$ Cherry picked from tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-oslw2j2958we9qf0ctra4whd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-08 09:56:00 -03:00
perf trace: Move vfs_getname storage to per thread area We were storing the vfs_getname payload (i.e. ptr->string) into the trace wide storage area (struct trace), so that we could use the last payload when setting up the fd->pathname per thread tables, oops, not a good idea for multi cpu tracing sessions... Fix it by moving it to the per thread area (struct thread_trace). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3j05ttqyaem7kh7oubvr1keo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-14 13:16:27 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Move vfs_getname storage to per thread area We were storing the vfs_getname payload (i.e. ptr->string) into the trace wide storage area (struct trace), so that we could use the last payload when setting up the fd->pathname per thread tables, oops, not a good idea for multi cpu tracing sessions... Fix it by moving it to the per thread area (struct thread_trace). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3j05ttqyaem7kh7oubvr1keo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-14 13:16:27 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf tools: Reference count struct thread We need to do that to stop accumulating entries in the dead_threads linked list, i.e. we were keeping references to threads in struct hists that continue to exist even after a thread exited and was removed from the machine threads rbtree. We still keep the dead_threads list, but just for debugging, allowing us to iterate at any given point over the threads that still are referenced by things like struct hist_entry. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3ejvfyed0r7ue61dkurzjux4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-02 22:21:35 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Add perf_event parameter to tracepoint_handler It will be used by next pagefault tracing patches in the series. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:24 +04:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Fix mmap return address truncation to 32-bit Using 'perf trace' for mmap is truncating return values by stripping the top 32 bits, actually printing only the lower 32 bits. This was because the ret value was of an 'int' type and not a 'long' type. The Problem: 991258501.244 ( 0.004 ms): mmap(len: 40001536, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1) = 0x56691000 991258501.257 ( 0.000 ms): minfault [_int_malloc+0x1038] => //anon@0x7fa056691008 //(d.) The first line shows an mmap, which succeeds and returns 0x56691000. However the next line shows a memory access to that virtual memory area, specifically to 0x7fa056691008. The upper 32 bit is lost due to the problem mentioned above, and thus mmap's return value didn't have the upper 0x7fa0. Tested on 3.17-rc5 from the linus's tree, and the HEAD of tip/master Signed-off-by: Chang Hyun Park <heartinpiece@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1411736041-8017-1-git-send-email-heartinpiece@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-26 21:54:01 +09:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Fix comm resolution when reading events from file Task comm's are getting lost when processing events from a file. The problem is that the trace struct used by the live processing has its host machine and the perf-session used for file based processing has its host machine. Fix by having both references point to the same machine. Before: 0.030 ( 0.001 ms): :27743/27743 brk( ... 0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... After: 0.030 ( 0.001 ms): make/27743 brk( ... 0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com [ Moved creation of new host machine to a separate constructor: machine__new_host() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:00 -06:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Don't relookup fields by name in each sample Instead do the lookups just when creating the tracepoints, initially for the most common, raw_syscalls:sys_{enter,exit}. It works by having evsel->priv have a per tracepoint structure with entries for the fields, for direct access, with the offset and a function to get the value from the sample, doing the swap if needed. Using a simple workload that does M millions write syscalls, we go from: # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null Performance counter stats for '/tmp/oldperf trace ./sc_hello 100': 8,366,771,459 cycles 2.668025928 seconds time elapsed # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null Performance counter stats for 'perf trace ./sc_hello 100': 8,345,187,650 cycles 2.631748425 seconds time elapsed Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 16:35:57 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Move vfs_getname storage to per thread area We were storing the vfs_getname payload (i.e. ptr->string) into the trace wide storage area (struct trace), so that we could use the last payload when setting up the fd->pathname per thread tables, oops, not a good idea for multi cpu tracing sessions... Fix it by moving it to the per thread area (struct thread_trace). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3j05ttqyaem7kh7oubvr1keo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-14 13:16:27 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Add duration filter Example: [acme@sandy linux]$ perf trace --duration 0.025 usleep 1 2.221 ( 0.958 ms): 6724 execve(arg0: 140733557168278, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = -2 3.690 ( 1.443 ms): 6724 execve(arg0: 140733557168295, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = 0 3.979 ( 0.048 ms): 6724 open(filename: 208733843841, flags: 0, mode: 1 ) = 3 4.071 ( 0.075 ms): 6724 open(filename: 139744419925673, flags: 0, mode: 0 ) = 3 4.318 ( 0.056 ms): 6724 nanosleep(rqtp: 140734030404608, rmtp: 0 ) = 0 [acme@sandy linux]$ perf trace --duration 0.100 usleep 1 1.143 ( 1.021 ms): 6726 execve(arg0: 140736323962279, arg1: 140736323972752, arg2: 34926752, arg3: 140736323961824, arg4: 7955998171588342573, arg5: 6725) = 0 [acme@sandy linux]$ Cherry picked from tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-oslw2j2958we9qf0ctra4whd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-08 09:56:00 -03:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Add duration filter Example: [acme@sandy linux]$ perf trace --duration 0.025 usleep 1 2.221 ( 0.958 ms): 6724 execve(arg0: 140733557168278, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = -2 3.690 ( 1.443 ms): 6724 execve(arg0: 140733557168295, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = 0 3.979 ( 0.048 ms): 6724 open(filename: 208733843841, flags: 0, mode: 1 ) = 3 4.071 ( 0.075 ms): 6724 open(filename: 139744419925673, flags: 0, mode: 0 ) = 3 4.318 ( 0.056 ms): 6724 nanosleep(rqtp: 140734030404608, rmtp: 0 ) = 0 [acme@sandy linux]$ perf trace --duration 0.100 usleep 1 1.143 ( 1.021 ms): 6726 execve(arg0: 140736323962279, arg1: 140736323972752, arg2: 34926752, arg3: 140736323961824, arg4: 7955998171588342573, arg5: 6725) = 0 [acme@sandy linux]$ Cherry picked from tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-oslw2j2958we9qf0ctra4whd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-08 09:56:00 -03:00
perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-24 17:24:47 -02:00
perf trace: Add summary only option Per request from Pekka make --summary a summary only option meaning do not show the individual system calls. Add another option to see all syscalls along with the summary. In addition use 's' and 'S' as shortcuts for the options. Requested-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: David Ahern <dsahern@gmail.com> Tested-by: Pekka Enberg <penberg@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 09:31:15 -07:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Simplify sys_exit return printing Avoiding multiple sc->fmt != NULL tests. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-w28d1o3uslden0k57653kda7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 11:28:34 -03:00
perf trace: Fix mmap return address truncation to 32-bit Using 'perf trace' for mmap is truncating return values by stripping the top 32 bits, actually printing only the lower 32 bits. This was because the ret value was of an 'int' type and not a 'long' type. The Problem: 991258501.244 ( 0.004 ms): mmap(len: 40001536, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1) = 0x56691000 991258501.257 ( 0.000 ms): minfault [_int_malloc+0x1038] => //anon@0x7fa056691008 //(d.) The first line shows an mmap, which succeeds and returns 0x56691000. However the next line shows a memory access to that virtual memory area, specifically to 0x7fa056691008. The upper 32 bit is lost due to the problem mentioned above, and thus mmap's return value didn't have the upper 0x7fa0. Tested on 3.17-rc5 from the linus's tree, and the HEAD of tip/master Signed-off-by: Chang Hyun Park <heartinpiece@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1411736041-8017-1-git-send-email-heartinpiece@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-26 21:54:01 +09:00
perf trace: Simplify sys_exit return printing Avoiding multiple sc->fmt != NULL tests. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-w28d1o3uslden0k57653kda7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 11:28:34 -03:00
perf trace: Use strerror_r instead of strerror Use strerror_r instead of strerror in error message for thead-safety. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naohiro Aota <naota@elisp.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20140814022241.3545.97543.stgit@kbuild-fedora.novalocal Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-14 02:22:41 +00:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Simplify sys_exit return printing Avoiding multiple sc->fmt != NULL tests. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-w28d1o3uslden0k57653kda7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 11:28:34 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Allow printing syscall return values in hex event_format->flags has a FIELD_IS_POINTER, but it is not set for the sys_exit 'ret' field in syscalls like mmap, so we need a way to ask for hex printing for pointer returns and keep things like 'read' returns printing in decimal. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lfuveegw4od1t08n7bsmonrm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 11:36:30 -03:00
perf trace: Fix mmap return address truncation to 32-bit Using 'perf trace' for mmap is truncating return values by stripping the top 32 bits, actually printing only the lower 32 bits. This was because the ret value was of an 'int' type and not a 'long' type. The Problem: 991258501.244 ( 0.004 ms): mmap(len: 40001536, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: -1) = 0x56691000 991258501.257 ( 0.000 ms): minfault [_int_malloc+0x1038] => //anon@0x7fa056691008 //(d.) The first line shows an mmap, which succeeds and returns 0x56691000. However the next line shows a memory access to that virtual memory area, specifically to 0x7fa056691008. The upper 32 bit is lost due to the problem mentioned above, and thus mmap's return value didn't have the upper 0x7fa0. Tested on 3.17-rc5 from the linus's tree, and the HEAD of tip/master Signed-off-by: Chang Hyun Park <heartinpiece@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1411736041-8017-1-git-send-email-heartinpiece@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-26 21:54:01 +09:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Simplify sys_exit return printing Avoiding multiple sc->fmt != NULL tests. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-w28d1o3uslden0k57653kda7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-26 11:28:34 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Add duration filter Example: [acme@sandy linux]$ perf trace --duration 0.025 usleep 1 2.221 ( 0.958 ms): 6724 execve(arg0: 140733557168278, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = -2 3.690 ( 1.443 ms): 6724 execve(arg0: 140733557168295, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = 0 3.979 ( 0.048 ms): 6724 open(filename: 208733843841, flags: 0, mode: 1 ) = 3 4.071 ( 0.075 ms): 6724 open(filename: 139744419925673, flags: 0, mode: 0 ) = 3 4.318 ( 0.056 ms): 6724 nanosleep(rqtp: 140734030404608, rmtp: 0 ) = 0 [acme@sandy linux]$ perf trace --duration 0.100 usleep 1 1.143 ( 1.021 ms): 6726 execve(arg0: 140736323962279, arg1: 140736323972752, arg2: 34926752, arg3: 140736323961824, arg4: 7955998171588342573, arg5: 6725) = 0 [acme@sandy linux]$ Cherry picked from tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-oslw2j2958we9qf0ctra4whd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-08 09:56:00 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Use evsel->handler.func I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-28 17:58:36 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Add perf_event parameter to tracepoint_handler It will be used by next pagefault tracing patches in the series. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:24 +04:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Move vfs_getname storage to per thread area We were storing the vfs_getname payload (i.e. ptr->string) into the trace wide storage area (struct trace), so that we could use the last payload when setting up the fd->pathname per thread tables, oops, not a good idea for multi cpu tracing sessions... Fix it by moving it to the per thread area (struct thread_trace). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3j05ttqyaem7kh7oubvr1keo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-14 13:16:27 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Move vfs_getname storage to per thread area We were storing the vfs_getname payload (i.e. ptr->string) into the trace wide storage area (struct trace), so that we could use the last payload when setting up the fd->pathname per thread tables, oops, not a good idea for multi cpu tracing sessions... Fix it by moving it to the per thread area (struct thread_trace). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3j05ttqyaem7kh7oubvr1keo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-14 13:16:27 -03:00
perf trace: Deref sys_enter pointer args with contents from probe:vfs_getname To work like strace and dereference syscall pointer args we need to insert probes (or tracepoints) right after we copy those bytes from userspace. Since we're formatting the syscall args at raw_syscalls:sys_enter time, we need to have a formatter that just stores the position where, later, when we get the probe:vfs_getname, we can insert the pointer contents. Now, if a probe:vfs_getname with this format is in place: # perf probe -l probe:vfs_getname (on getname_flags:72@/home/git/linux/fs/namei.c with pathname) That was, in this case, put in place with: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # Then 'perf trace' will notice that and do the pointer -> contents expansion: # trace -e open touch /tmp/bla 0.165 (0.010 ms): touch/17752 open(filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.195 (0.011 ms): touch/17752 open(filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.512 (0.012 ms): touch/17752 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.582 (0.012 ms): touch/17752 open(filename: /tmp/bla, flags: CREAT|NOCTTY|NONBLOCK|WRONLY, mode: 438) = 3 # Roughly equivalent to strace's output: # strace -rT -e open touch /tmp/bla 0.000000 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000039> 0.000317 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000102> 0.001461 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 <0.000072> 0.000405 open("/tmp/bla", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 <0.000055> 0.000641 +++ exited with 0 +++ # Now we need to either look for at all syscalls that are marked as pointers and have some well known names ("filename", "pathname", etc) and set the arg formatter to the one used for the "open" syscall in this patch. This implementation works for syscalls with just a string being copied from userspace, for matching syscalls with more than one string being copied via the same probe/trace point (vfs_getname) we need to extend the vfs_getname probe spec to include the pointer too, but there are some problems with that in 'perf probe' or the kernel kprobes code, need to investigate before considering supporting multiple strings per syscall. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-xvuwx6nuj8cf389kf9s2ue2s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 22:30:09 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Add perf_event parameter to tracepoint_handler It will be used by next pagefault tracing patches in the series. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:24 +04:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Fix comm resolution when reading events from file Task comm's are getting lost when processing events from a file. The problem is that the trace struct used by the live processing has its host machine and the perf-session used for file based processing has its host machine. Fix by having both references point to the same machine. Before: 0.030 ( 0.001 ms): :27743/27743 brk( ... 0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... After: 0.030 ( 0.001 ms): make/27743 brk( ... 0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com [ Moved creation of new host machine to a separate constructor: machine__new_host() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:00 -06:00
perf tools: change machine__findnew_thread() to set thread pid Add a new parameter for 'pid' to machine__findnew_thread(). Change callers to pass 'pid' when it is known. Note that callers sometimes want to find the main thread which has the memory maps. The main thread has tid == pid so the usage in that case is: machine__findnew_thread(machine, pid, pid) whereas the usage to find the specific thread is: machine__findnew_thread(machine, pid, tid) Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377591794-30553-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-27 11:23:03 +03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: Only insert blank duration bracket when tracing syscalls When printing just events, i.e. '--no-sys --ev some:events' it makes no sense to waste screen space. Before: # trace --no-sys --ev probe:* 84481.704 ( ): probe:vfs_getname:(ffffffff811ed023) pathname="/etc/services") 84481.892 ( ): probe:vfs_getname:(ffffffff811ed023) pathname="/etc/services") 84482.230 ( ): probe:vfs_getname:(ffffffff811ed023) pathname="/etc/resolv.conf") 84482.481 ( ): probe:vfs_getname:(ffffffff811ed023) pathname="/etc/hosts") 85097.725 ( ): probe:vfs_getname:(ffffffff811ed023) pathname="/root" # After: # trace --no-sys --ev probe:* 0.000 probe:vfs_getname:(ffffffff811ed023) pathname="/root") 1.711 probe:vfs_getname:(ffffffff811ed023) pathname="/etc/localtime") 2.103 probe:vfs_getname:(ffffffff811ed023) pathname="/etc/localtime") ^C# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-jhryxgnam8zecq0q0wsy6pyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-19 21:51:50 -08:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Fix build on 32-bit systems CC /tmp/build/perf/builtin-trace.o builtin-trace.c: In function 'print_location': builtin-trace.c:1792:4: error: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'u64' [-Werror=format] builtin-trace.c:1794:3: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format] builtin-trace.c:1796:3: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format] cc1: all warnings being treated as errors make[1]: *** [/tmp/build/perf/builtin-trace.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [install-bin] Error 2 make: Leaving directory `/home/acme/git/linux/tools/perf' acme@linux-goap:~/git/linux> uname -a Linux linux-goap 3.7.10-1.16-desktop #1 SMP PREEMPT Fri May 31 20:21:23 UTC 2013 (97c14ba) i686 i686 i386 GNU/Linux Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-843p3aqbw531eqiu2hah8o9p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 15:39:21 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Fix build on 32-bit systems CC /tmp/build/perf/builtin-trace.o builtin-trace.c: In function 'print_location': builtin-trace.c:1792:4: error: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'u64' [-Werror=format] builtin-trace.c:1794:3: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format] builtin-trace.c:1796:3: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format] cc1: all warnings being treated as errors make[1]: *** [/tmp/build/perf/builtin-trace.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [install-bin] Error 2 make: Leaving directory `/home/acme/git/linux/tools/perf' acme@linux-goap:~/git/linux> uname -a Linux linux-goap 3.7.10-1.16-desktop #1 SMP PREEMPT Fri May 31 20:21:23 UTC 2013 (97c14ba) i686 i686 i386 GNU/Linux Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-843p3aqbw531eqiu2hah8o9p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 15:39:21 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Fix build on 32-bit systems CC /tmp/build/perf/builtin-trace.o builtin-trace.c: In function 'print_location': builtin-trace.c:1792:4: error: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'u64' [-Werror=format] builtin-trace.c:1794:3: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format] builtin-trace.c:1796:3: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' [-Werror=format] cc1: all warnings being treated as errors make[1]: *** [/tmp/build/perf/builtin-trace.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [install-bin] Error 2 make: Leaving directory `/home/acme/git/linux/tools/perf' acme@linux-goap:~/git/linux> uname -a Linux linux-goap 3.7.10-1.16-desktop #1 SMP PREEMPT Fri May 31 20:21:23 UTC 2013 (97c14ba) i686 i686 i386 GNU/Linux Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-843p3aqbw531eqiu2hah8o9p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 15:39:21 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Add pagefault statistics 'perf trace' can show summary of events using -S option. This commit also reports number of major/minor pagefault events in this summary. $ perf trace -s --pf all -- sleep 1 Summary of events: sleep (18604), 275 events, 99.6%, 197 minfaults, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 2 0.000 0.001 0.002 100.00% open 3 0.004 0.005 0.007 21.13% close 3 0.001 0.001 0.001 1.37% fstat 3 0.001 0.002 0.002 10.66% mmap 8 0.002 0.004 0.006 10.69% mprotect 4 0.003 0.005 0.008 24.68% munmap 1 0.005 0.005 0.005 0.00% brk 3 0.001 0.002 0.003 28.08% access 3 0.002 0.003 0.005 24.48% nanosleep 1 1000.747 1000.747 1000.747 0.00% execve 8 0.000 0.033 0.246 91.00% arch_prctl 1 0.001 0.001 0.001 0.00% Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1404842716-19190-1-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 22:05:16 +04:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Add pagefault statistics 'perf trace' can show summary of events using -S option. This commit also reports number of major/minor pagefault events in this summary. $ perf trace -s --pf all -- sleep 1 Summary of events: sleep (18604), 275 events, 99.6%, 197 minfaults, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 2 0.000 0.001 0.002 100.00% open 3 0.004 0.005 0.007 21.13% close 3 0.001 0.001 0.001 1.37% fstat 3 0.001 0.002 0.002 10.66% mmap 8 0.002 0.004 0.006 10.69% mprotect 4 0.003 0.005 0.008 24.68% munmap 1 0.005 0.005 0.005 0.00% brk 3 0.001 0.002 0.003 28.08% access 3 0.002 0.003 0.005 24.48% nanosleep 1 1000.747 1000.747 1000.747 0.00% execve 8 0.000 0.033 0.246 91.00% arch_prctl 1 0.001 0.001 0.001 0.00% Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1404842716-19190-1-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 22:05:16 +04:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Add pagefault statistics 'perf trace' can show summary of events using -S option. This commit also reports number of major/minor pagefault events in this summary. $ perf trace -s --pf all -- sleep 1 Summary of events: sleep (18604), 275 events, 99.6%, 197 minfaults, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 2 0.000 0.001 0.002 100.00% open 3 0.004 0.005 0.007 21.13% close 3 0.001 0.001 0.001 1.37% fstat 3 0.001 0.002 0.002 10.66% mmap 8 0.002 0.004 0.006 10.69% mprotect 4 0.003 0.005 0.008 24.68% munmap 1 0.005 0.005 0.005 0.00% brk 3 0.001 0.002 0.003 28.08% access 3 0.002 0.003 0.005 24.48% nanosleep 1 1000.747 1000.747 1000.747 0.00% execve 8 0.000 0.033 0.246 91.00% arch_prctl 1 0.001 0.001 0.001 0.00% Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1404842716-19190-1-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 22:05:16 +04:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf tools: A thread's machine can be found via thread->mg->machine So stop passing both machine and thread to several thread methods, reducing function signature length. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ckcy19dcp1jfkmdihdjcqdn1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-23 12:50:25 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf tools: A thread's machine can be found via thread->mg->machine So stop passing both machine and thread to several thread methods, reducing function signature length. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ckcy19dcp1jfkmdihdjcqdn1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-23 12:50:25 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf tools: A thread's machine can be found via thread->mg->machine So stop passing both machine and thread to several thread methods, reducing function signature length. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ckcy19dcp1jfkmdihdjcqdn1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-23 12:50:25 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf machine: Protect the machine->threads with a rwlock In addition to using refcounts for the struct thread lifetime management, we need to protect access to machine->threads from concurrent access. That happens in 'perf top', where a thread processes events, inserting and deleting entries from that rb_tree while another thread decays hist_entries, that end up dropping references and ultimately deleting threads from the rb_tree and releasing its resources when no further hist_entry (or other data structures, like in 'perf sched') references it. So the rule is the same for refcounts + protected trees in the kernel, get the tree lock, find object, bump the refcount, drop the tree lock, return, use object, drop the refcount if no more use of it is needed, keep it if storing it in some other data structure, drop when releasing that data structure. I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and "perf_event__preprocess_sample(&al)" with "addr_location__put(&al)". The addr_location__put() one is because as we return references to several data structures, we may end up adding more reference counting for the other data structures and then we'll drop it at addr_location__put() time. Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-06 20:43:22 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Honor target pid / tid options when analyzing a file Allows capture of raw_syscall events for all processes or threads in a task and then analyzing specific ones. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:53 -06:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Add perf_event parameter to tracepoint_handler It will be used by next pagefault tracing patches in the series. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:24 +04:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf evsel: Ditch evsel->handler.data field Not needed since this cset: fcf65bf149af: perf evsel: Cache associated event_format So lets trim this struct a bit. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-j8setslokt0goiwxq9dogzqm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 10:17:38 -03:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Honor target pid / tid options when analyzing a file Allows capture of raw_syscall events for all processes or threads in a task and then analyzing specific ones. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:53 -06:00
perf trace: Add option to show full timestamp Current timestamp shown for output is time relative to firt sample. This patch adds an option to show the absolute perf_clock timestamp which is useful when comparing output across commands (e.g., perf-trace to perf-script). Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1378319865-55695-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 12:37:43 -06:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Fix summary percentage when processing files Getting a divide by 0 when events are processed from a file: perf trace -i perf.data -s ... dnsmasq (1684), 10 events, inf%, 0.000 msec The problem is that the event count is not incremented as events are processed. With this patch: perf trace -i perf.data -s ... dnsmasq (1684), 10 events, 8.9%, 0.000 msec Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:41 -07:00
perf trace: Add perf_event parameter to tracepoint_handler It will be used by next pagefault tracing patches in the series. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:24 +04:00
perf trace: Fix summary percentage when processing files Getting a divide by 0 when events are processed from a file: perf trace -i perf.data -s ... dnsmasq (1684), 10 events, inf%, 0.000 msec The problem is that the event count is not incremented as events are processed. With this patch: perf trace -i perf.data -s ... dnsmasq (1684), 10 events, 8.9%, 0.000 msec Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:41 -07:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Honor target pid / tid options when analyzing a file Allows capture of raw_syscall events for all processes or threads in a task and then analyzing specific ones. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:53 -06:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Add record option The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:01 -06:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Add support for syscalls vs raw_syscalls Older kernels (e.g., RHEL6) do system call tracing via syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to detect lack of raw_syscalls support and try syscalls. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:39 -07:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Add record option The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:01 -06:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Add record option The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:01 -06:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Add record option The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:01 -06:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Add support for syscalls vs raw_syscalls Older kernels (e.g., RHEL6) do system call tracing via syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to detect lack of raw_syscalls support and try syscalls. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:39 -07:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Add record option The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:01 -06:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Add record option The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:01 -06:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Remember if the vfs_getname tracepoint/kprobe is in place So that we can later decide if we will store where to expand the pathname once we are handling vfs_getname or if we should instead just go on and straight away print the pointer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ytxk5s5jpc50wahffmlxgxuw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 17:01:04 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf evsel: Remove idx parm from constructor Most uses of the evsel constructor are followed by a call to perf_evlist__add with an idex of evlist->nr_entries, so make rename the current constructor to perf_evsel__new_idx and remove the need for passing the constructor for the common case. We still need the new_idx variant because the way groups are handled, with evsel->nr_members holding the number of entries in an evlist, partitioning the evlist into sublists inside a single linked list. This asks for a clarifying refactoring, but for now simplify the non parser cases, so that tool writers don't have to bother with evsel idx setting. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zy9tskx6jqm2rmw7468zze2a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-07 16:41:19 -03:00
perf evsel: Propagate error info from tp_format Propagate error info from tp_format via ERR_PTR to get it all the way down to the parse-event.c tracepoint adding routines. Following functions now return pointer with encoded error: - tp_format - trace_event__tp_format - perf_evsel__newtp_idx - perf_evsel__newtp This affects several other places in perf, that cannot use pointer check anymore, but must utilize the err.h interface, when getting error information from above functions list. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Link: http://lkml.kernel.org/r/1441615087-13886-5-git-send-email-jolsa@kernel.org [ Add two missing ERR_PTR() and one IS_ERR() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-07 10:38:06 +02:00
perf trace: Remember if the vfs_getname tracepoint/kprobe is in place So that we can later decide if we will store where to expand the pathname once we are handling vfs_getname or if we should instead just go on and straight away print the pointer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ytxk5s5jpc50wahffmlxgxuw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 17:01:04 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Remember if the vfs_getname tracepoint/kprobe is in place So that we can later decide if we will store where to expand the pathname once we are handling vfs_getname or if we should instead just go on and straight away print the pointer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ytxk5s5jpc50wahffmlxgxuw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 17:01:04 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf evsel: Ditch evsel->handler.data field Not needed since this cset: fcf65bf149af: perf evsel: Cache associated event_format So lets trim this struct a bit. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-j8setslokt0goiwxq9dogzqm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-06 10:17:38 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Remember if the vfs_getname tracepoint/kprobe is in place So that we can later decide if we will store where to expand the pathname once we are handling vfs_getname or if we should instead just go on and straight away print the pointer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ytxk5s5jpc50wahffmlxgxuw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 17:01:04 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf tools: Fix build on gcc 4.4.7 [acme@sandy linux]$ gcc --version gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3) Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. [acme@sandy linux]$ make O=/tmp/build/perf -C tools/perf install-bin <SNIP> CC /tmp/build/perf/builtin-trace.o builtin-trace.c: In function ‘perf_evlist__add_pgfault’: builtin-trace.c:1997: error: unknown field ‘sample_period’ specified in initializer make[1]: *** [/tmp/build/perf/builtin-trace.o] Error 1 make: *** [install-bin] Error 2 make: Leaving directory `/home/acme/git/linux/tools/perf' [acme@sandy linux]$ make O=/tmp/build/perf -C tools/perf install-bin make O=/tmp/build/perf -C tools/perf install-bin make: Entering directory `/home/acme/git/linux/tools/perf' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qt7h2g5fcf42qiw5hv7mgpjk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-23 18:15:09 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Separate routine that handles an event from the one that reads it Because we need to use ordered_events in some cases, so we will need to first have them in a queue, order that queue, and then process the event. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-cmkw9zgoh0z4r218957ftp1a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 12:10:29 -08:00
perf trace: Remember what are the syscalls tracepoint evsels We will need to set filters on then. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u8hpgjpf3w8o1prnnjnwegwf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:24:51 -03:00
perf trace: Store the syscall ids for the event qualifiers in a table That we will use to set a filter on raw_syscalls:sys_{enter,exit} events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2acxrcxyu7tlolrfilpty38y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:28:11 -03:00
perf trace: Remember what are the syscalls tracepoint evsels We will need to set filters on then. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u8hpgjpf3w8o1prnnjnwegwf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:24:51 -03:00
perf trace: Use event filters for the event qualifier list We use raw_syscalls:sys_{enter,exit} events to show the syscalls, but were using a rather lazy/inneficient way to implement our 'strace -e' equivalent: filter out after reading the events in the ring buffer. Deflect more work to the kernel by appending a filter expression for that, that, together with the pid list, that is always present, if only to filter the tracer itself, reduces pressure on the ring buffer and otherwise use infrastructure already in place in the kernel to do early filtering. If we use it with -v we can see the filter passed to the kernel, for instance, for this contrieved case: # trace -v -e \!open,close,write,poll,recvfrom,select,recvmsg,writev,sendmsg,read,futex,epoll_wait,ioctl,eventfd --filter-pids 2189,2566,1398,2692,4475,4532 <SNIP> (common_pid != 2514 && common_pid != 1398 && common_pid != 2189 && common_pid != 2566 && common_pid != 2692 && common_pid != 4475 && common_pid != 4532) && (id != 3 && id != 232 && id != 284 && id != 202 && id != 16 && id != 2 && id != 7 && id != 0 && id != 45 && id != 47 && id != 23 && id != 46 && id != 1 && id != 20) 0.011 (0.011 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 16.946 (0.019 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 38.598 (0.167 ms): chronyd/794 socket(family: INET, type: DGRAM ) = 4 38.603 (0.002 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: GETFD) = 0 38.605 (0.001 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: SETFD, arg: 1) = 0 ^C # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ti2tg18atproqpguc2moinp6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-04 12:44:59 -03:00
perf trace: Remember what are the syscalls tracepoint evsels We will need to set filters on then. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u8hpgjpf3w8o1prnnjnwegwf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:24:51 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf evlist: Make perf_evlist__set_filter use perf_evsel__set_filter Instead of calling perf_evsel__apply_filter straight away, so that we can, in the next patches, expand the filter with more conditions before actually calling the ioctl to pass the end result filter to the kernel. Now we need to call perf_evlist__apply_filters() after the filter is completely setup, i.e. do the ioctl calls. The perf_evlist__apply_filters() method was already in place, because that is the model for the other tools that receives filters in the command line: go on setting then in the evsel->filter and only at the end, after parsing the whole command line, apply them. We get, as a bonus, a more expressive message that states which event, if any, failed to have the filter applied to, with an error message stating what happened. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f429pgz75ryz7tpe6v74etre@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-03 17:42:03 -03:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Filter out POLLHUP'ed file descriptors So that we don't continue polling on vanished file descriptors, i.e. file descriptors for events monitoring threads that exited. I.e. the following 'trace' command now exits as expected, instead of staying in an eternal loop: $ sleep 5s & $ trace -p `pidof sleep` Reported-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6qegv786zbf6i8us6t4rxug9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-22 14:39:48 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: Remember what are the syscalls tracepoint evsels We will need to set filters on then. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-u8hpgjpf3w8o1prnnjnwegwf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-02 18:24:51 -03:00
tools lib fs: Pass filename to debugfs__strerror_open It was hardcoded for one specific tracepoint, leftover from its initial user: 'perf trace'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-j1jicvwljy5qx1nah4mkmyke@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 10:52:55 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Remember if the vfs_getname tracepoint/kprobe is in place So that we can later decide if we will store where to expand the pathname once we are handling vfs_getname or if we should instead just go on and straight away print the pointer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ytxk5s5jpc50wahffmlxgxuw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-04 17:01:04 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
tools lib fs: Adopt debugfs open strerrno method As this is not specific to an evlist and may be used with other tools. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a9up9mivx1pzdf5tqrqsx62d@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> tools/perf/util/include/asm/hash.h
2015-01-22 10:34:22 -03:00
perf trace: Fix error reporting for evsel pgfault constructor In that case the only failure possible is not to have enough memory, as we are just creating the evsels, not trying to access any system facility such as debugfs files or syscalls. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-7k6asvfhiwiu2zs6o2oknchk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 11:08:04 -03:00
tools lib fs: Adopt debugfs open strerrno method As this is not specific to an evlist and may be used with other tools. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a9up9mivx1pzdf5tqrqsx62d@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> tools/perf/util/include/asm/hash.h
2015-01-22 10:34:22 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Fix error reporting for evsel pgfault constructor In that case the only failure possible is not to have enough memory, as we are just creating the evsels, not trying to access any system facility such as debugfs files or syscalls. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-7k6asvfhiwiu2zs6o2oknchk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 11:08:04 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
tools lib fs debugfs: Introduce debugfs__strerror_open_tp There will be other cases where not just a tracepoint event is being opened below the debugfs mountpoint, but it is rather common, so provide one helper for that. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q6e6zct49ql6nbcw8kkg0lbj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 11:13:43 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf evlist: Move destruction of maps to evlist destructor Instead of requiring tools to do an extra destructor call just before calling perf_evlist__delete. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0jd2ptzyikxb5wp7inzz2ah2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-03 15:56:06 -03:00
perf trace: Support interrupted syscalls Using the same strategies as in the tmp.perf/trace2, i.e. the 'trace' tool implemented by tglx, just updated to the current codebase. Example: [root@sandy linux]# perf trace usleep 1 | tail 2.003: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128396288 2.017: mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -2128400384 2.029: arch_prctl(option: 4098, arg2: 140146949441280, arg3: 140146949435392, arg4: 34, arg5: 4294967295) = 0 2.084: mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 2.098: mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 2.122: munmap(addr: 140146949447680, len: 91882 ) = 0 2.359: brk(brk: 0 ) = 28987392 2.371: brk(brk: 29122560 ) = 29122560 2.490: nanosleep(rqtp: 140735694241504, rmtp: 0 ) = 0 2.507: exit_group(error_code: 0 [root@sandy linux]# For now the timestamp and duration are always on, will be selectable. Also if multiple threads are being monitored, its tid will appear. The ret output continues to be interpreted a la strace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ly9ulroru4my5isn0xe9gr0m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-06 18:43:19 -03:00
perf evlist: Set the leader in the perf_evlist__config method Since we need to ensure the leader is set before configuring the evsel perf_event_attrs. Reducing the boilerplate needed by tools, helping, for instance, 'perf trace', that wasn't setting the leader. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-22shm0ptkch2kgl7rtqlligx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-12-10 16:41:31 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf evlist: Pass struct perf_target to perf_evlist__prepare_workload() It's a preparation step of removing @opts arg from the function so that it can be used more widely. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1362987798-24969-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-11 16:43:15 +09:00
perf evlist: Move the SIGUSR1 error reporting logic to prepare_workload So that we have the boilerplate in the preparation method, instead of open coded in tools wanting the reporting when the exec fails. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-purbdzcphdveskh7wwmnm4t7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-03 14:56:49 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf evlist: Move destruction of maps to evlist destructor Instead of requiring tools to do an extra destructor call just before calling perf_evlist__delete. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0jd2ptzyikxb5wp7inzz2ah2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-03 15:56:06 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Improve messages related to /proc/sys/kernel/perf_event_paranoid kernel/events/core.c has: /* * perf event paranoia level: * -1 - not paranoid at all * 0 - disallow raw tracepoint access for unpriv * 1 - disallow cpu events for unpriv * 2 - disallow kernel profiling for unpriv */ int sysctl_perf_event_paranoid __read_mostly = 1; So, with the default being 1, a non-root user can trace his stuff: [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 1 [acme@zoo ~]$ yes > /dev/null & [1] 15338 [acme@zoo ~]$ trace -p 15338 | head -5 0.005 ( 0.005 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.045 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.085 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.125 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.165 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 [acme@zoo ~]$ [acme@zoo ~]$ trace --duration 1 sleep 1 1002.148 (1001.218 ms): nanosleep(rqtp: 0x7fff46c79250 ) = 0 [acme@zoo ~]$ [acme@zoo ~]$ trace -- usleep 1 | tail -5 0.905 ( 0.002 ms): brk( ) = 0x1c82000 0.910 ( 0.003 ms): brk(brk: 0x1ca3000 ) = 0x1ca3000 0.913 ( 0.001 ms): brk( ) = 0x1ca3000 0.990 ( 0.059 ms): nanosleep(rqtp: 0x7fffe31a3280 ) = 0 0.995 ( 0.000 ms): exit_group( [acme@zoo ~]$ But can't do system wide tracing: [acme@zoo ~]$ trace Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 0 Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ If the paranoid level is >= 2, i.e. turn this perf stuff off for !root users: [acme@zoo ~]$ sudo sh -c 'echo 2 > /proc/sys/kernel/perf_event_paranoid' [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 2 [acme@zoo ~]$ [acme@zoo ~]$ trace usleep 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ If the user manages to get what he/she wants, convincing root not to be paranoid at all... [root@zoo ~]# echo -1 > /proc/sys/kernel/perf_event_paranoid [root@zoo ~]# cat /proc/sys/kernel/perf_event_paranoid -1 [root@zoo ~]# [acme@zoo ~]$ ps -eo user,pid,comm | grep Xorg root 729 Xorg [acme@zoo ~]$ [acme@zoo ~]$ trace -a --duration 0.001 -e \!select,ioctl,writev | grep Xorg | head -5 23.143 ( 0.003 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.152 ( 0.004 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = 8 23.161 ( 0.002 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 23.175 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.235 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 [acme@zoo ~]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-di28olfwd28rvkox7v3hqhu1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-17 17:38:29 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Filter out the trace pid when no threads are specified To avoid tracing the tracer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-shmwd1khzpaobr3i0j1ygapg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 10:15:21 -08:00
perf trace: Introduce --filter-pids When tracing in X we get event loops due to the tracing activity, i.e. updates to a gnome-terminal that generate syscalls for X.org, etc. To get a more useful view of what is happening, syscall wise, system wide, we need to filter those, like in: # ps ax|egrep '981|2296|1519' | grep -v egrep 981 tty1 Ss+ 5:40 /usr/bin/Xorg :0 -background none ... 1519 ? Sl 2:22 /usr/bin/gnome-shell 2296 ? Sl 4:16 /usr/libexec/gnome-terminal-server # # trace -e write --filter-pids 981,2296,1519 0.385 ( 0.021 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 0.922 ( 0.014 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5006.525 ( 0.029 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 5007.235 ( 0.023 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5177.646 ( 0.018 ms): rtkit-daemon/782 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7f7eea70be88, count: 8) = 8 8314.497 ( 0.004 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af7b0, count: 8) = 8 8314.518 ( 0.002 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af0e0, count: 8) = 8 ^C# When this option is used the tracer pid is also filtered. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f5qmiyy7c0uxdm21ncatpeek@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 11:36:52 -08:00
perf thread_map: Don't access the array entries directly Instead provide a method to set the array entries, and another to access the contents. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435012588-9007-2-git-send-email-jolsa@kernel.org [ Split providing the set/get accessors from transforming the entries structs ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-23 00:36:02 +02:00
perf trace: Introduce --filter-pids When tracing in X we get event loops due to the tracing activity, i.e. updates to a gnome-terminal that generate syscalls for X.org, etc. To get a more useful view of what is happening, syscall wise, system wide, we need to filter those, like in: # ps ax|egrep '981|2296|1519' | grep -v egrep 981 tty1 Ss+ 5:40 /usr/bin/Xorg :0 -background none ... 1519 ? Sl 2:22 /usr/bin/gnome-shell 2296 ? Sl 4:16 /usr/libexec/gnome-terminal-server # # trace -e write --filter-pids 981,2296,1519 0.385 ( 0.021 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 0.922 ( 0.014 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5006.525 ( 0.029 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 5007.235 ( 0.023 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5177.646 ( 0.018 ms): rtkit-daemon/782 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7f7eea70be88, count: 8) = 8 8314.497 ( 0.004 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af7b0, count: 8) = 8 8314.518 ( 0.002 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af0e0, count: 8) = 8 ^C# When this option is used the tracer pid is also filtered. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f5qmiyy7c0uxdm21ncatpeek@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 11:36:52 -08:00
perf evlist: Make perf_evlist__set_filter use perf_evsel__set_filter Instead of calling perf_evsel__apply_filter straight away, so that we can, in the next patches, expand the filter with more conditions before actually calling the ioctl to pass the end result filter to the kernel. Now we need to call perf_evlist__apply_filters() after the filter is completely setup, i.e. do the ioctl calls. The perf_evlist__apply_filters() method was already in place, because that is the model for the other tools that receives filters in the command line: go on setting then in the evsel->filter and only at the end, after parsing the whole command line, apply them. We get, as a bonus, a more expressive message that states which event, if any, failed to have the filter applied to, with an error message stating what happened. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f429pgz75ryz7tpe6v74etre@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-03 17:42:03 -03:00
perf trace: Use event filters for the event qualifier list We use raw_syscalls:sys_{enter,exit} events to show the syscalls, but were using a rather lazy/inneficient way to implement our 'strace -e' equivalent: filter out after reading the events in the ring buffer. Deflect more work to the kernel by appending a filter expression for that, that, together with the pid list, that is always present, if only to filter the tracer itself, reduces pressure on the ring buffer and otherwise use infrastructure already in place in the kernel to do early filtering. If we use it with -v we can see the filter passed to the kernel, for instance, for this contrieved case: # trace -v -e \!open,close,write,poll,recvfrom,select,recvmsg,writev,sendmsg,read,futex,epoll_wait,ioctl,eventfd --filter-pids 2189,2566,1398,2692,4475,4532 <SNIP> (common_pid != 2514 && common_pid != 1398 && common_pid != 2189 && common_pid != 2566 && common_pid != 2692 && common_pid != 4475 && common_pid != 4532) && (id != 3 && id != 232 && id != 284 && id != 202 && id != 16 && id != 2 && id != 7 && id != 0 && id != 45 && id != 47 && id != 23 && id != 46 && id != 1 && id != 20) 0.011 (0.011 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 16.946 (0.019 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 38.598 (0.167 ms): chronyd/794 socket(family: INET, type: DGRAM ) = 4 38.603 (0.002 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: GETFD) = 0 38.605 (0.001 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: SETFD, arg: 1) = 0 ^C # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ti2tg18atproqpguc2moinp6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-04 12:44:59 -03:00
perf trace: Do not show syscall tracepoint filter in the --no-syscalls case We were accessing trace->syscalls.events members even when that struct wasn't initialized, i.e. --no-syscalls was specified on the command line, fix it to show that, still in debug mode, when we have an event qualifier list, i.e. when we actually are doing subset syscall tracing. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Fixes: 19867b6186f3 ("perf trace: Use event filters for the event qualifier list") Link: http://lkml.kernel.org/n/tip-7980ym6vujgh3yiai0cqzc88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-03 17:12:29 -03:00
perf trace: Use event filters for the event qualifier list We use raw_syscalls:sys_{enter,exit} events to show the syscalls, but were using a rather lazy/inneficient way to implement our 'strace -e' equivalent: filter out after reading the events in the ring buffer. Deflect more work to the kernel by appending a filter expression for that, that, together with the pid list, that is always present, if only to filter the tracer itself, reduces pressure on the ring buffer and otherwise use infrastructure already in place in the kernel to do early filtering. If we use it with -v we can see the filter passed to the kernel, for instance, for this contrieved case: # trace -v -e \!open,close,write,poll,recvfrom,select,recvmsg,writev,sendmsg,read,futex,epoll_wait,ioctl,eventfd --filter-pids 2189,2566,1398,2692,4475,4532 <SNIP> (common_pid != 2514 && common_pid != 1398 && common_pid != 2189 && common_pid != 2566 && common_pid != 2692 && common_pid != 4475 && common_pid != 4532) && (id != 3 && id != 232 && id != 284 && id != 202 && id != 16 && id != 2 && id != 7 && id != 0 && id != 45 && id != 47 && id != 23 && id != 46 && id != 1 && id != 20) 0.011 (0.011 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 16.946 (0.019 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 38.598 (0.167 ms): chronyd/794 socket(family: INET, type: DGRAM ) = 4 38.603 (0.002 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: GETFD) = 0 38.605 (0.001 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: SETFD, arg: 1) = 0 ^C # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ti2tg18atproqpguc2moinp6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-04 12:44:59 -03:00
perf evlist: Make perf_evlist__set_filter use perf_evsel__set_filter Instead of calling perf_evsel__apply_filter straight away, so that we can, in the next patches, expand the filter with more conditions before actually calling the ioctl to pass the end result filter to the kernel. Now we need to call perf_evlist__apply_filters() after the filter is completely setup, i.e. do the ioctl calls. The perf_evlist__apply_filters() method was already in place, because that is the model for the other tools that receives filters in the command line: go on setting then in the evsel->filter and only at the end, after parsing the whole command line, apply them. We get, as a bonus, a more expressive message that states which event, if any, failed to have the filter applied to, with an error message stating what happened. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f429pgz75ryz7tpe6v74etre@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-03 17:42:03 -03:00
perf trace: Filter out the trace pid when no threads are specified To avoid tracing the tracer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-shmwd1khzpaobr3i0j1ygapg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 10:15:21 -08:00
perf trace: Honour -m option Currently trace command supports '-m' option, but does not honours its value and keeps the default. Changing the perf_evlist__mmap function call to use the '-m' configured value. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1385657842-8914-1-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-28 17:57:22 +01:00
perf trace: Provide a better explanation when mmap fails If we ask for a mmap lenght than the max configured via the relevant sysctl, provide a better warning, instead of just expanding the EPERM returned: [acme@ssdandy ~]$ trace -m 256 -e nanosleep sleep 2 Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_mlock_kb (516 kB) setting. Hint: Tried using 1028 kB. Hint: Try using a bigger -m/--mmap-pages value. [acme@ssdandy ~]$ trace -m 128 -e nanosleep sleep 2 2001.280 (2000.403 ms): nanosleep(rqtp: 0x7fff89a8a7f0) = 0 [acme@ssdandy ~]$ An upcoming patch will autotune the request for non-root users when -m is not used. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-cdvxfz2gycetbkopm9sna1qp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-11 18:04:10 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Enable events when doing system wide tracing and starting a workload commit f7aa222ff397 Author: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Tue Feb 3 13:25:39 2015 -0300 perf trace: No need to enable evsels for workload started from perf The assumption was that whenever a workload is specified, the attr.enable_on_exec evsel flag would be set, but that is not happening when perf_record_opts.system_wide is set, for instance That resulted in both perf_evlist__enable() and attr.enable_on_exec being not called/set, which made the events to remain disabled while the workload runs, producing no output. Fix it, by calling perf_evlist__enable() in the 'trace' tool when forking and not targetting a workload started from trace v2: Test against !target__none(), as suggested by Namhyung Kim, that is what is used in perf_evsel__config() when deciding if the attr.enable_on_exec flag to be set. More work is needed to cover other cases such as opts->initial_delay. Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-27z7169pvfxgj8upic636syv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-22 10:04:23 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf thread_map: Don't access the array entries directly Instead provide a method to set the array entries, and another to access the contents. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435012588-9007-2-git-send-email-jolsa@kernel.org [ Split providing the set/get accessors from transforming the entries structs ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-23 00:36:02 +02:00
perf trace: Print thread info when following children The default for 'trace workload' is to set perf_event_attr.inherit to 1, i.e. to make it equivalent to 'strace -f workload', so we were ending with syscalls for multiple processes mixed up, fix it: Before: [root@ssdandy ~]# trace -e brk time usleep 1 0.071 ( 0.002 ms): brk( ) = 0x100e000 0.802 ( 0.001 ms): brk( ) = 0x1d99000 1.132 ( 0.003 ms): brk( ) = 0x1d99000 1.136 ( 0.003 ms): brk(brk: 0x1dba000) = 0x1dba000 1.140 ( 0.001 ms): brk( ) = 0x1dba000 0.00user 0.00system 0:00.00elapsed 63%CPU (0avgtext+0avgdata 528maxresident)k 0inputs+0outputs (0major+181minor)pagefaults 0swaps [root@ssdandy ~]# After: [root@ssdandy ~]# trace -f -e brk time usleep 1 0.072 ( 0.002 ms): time/26308 brk( ) = 0x1e6e000 0.860 ( 0.001 ms): usleep/26309 brk( ) = 0xb91000 1.193 ( 0.003 ms): usleep/26309 brk( ) = 0xb91000 1.197 ( 0.003 ms): usleep/26309 brk(brk: 0xbb2000) = 0xbb2000 1.201 ( 0.001 ms): usleep/26309 brk( ) = 0xbb2000 0.00user 0.00system 0:00.00elapsed 0%CPU (0avgtext+0avgdata 524maxresident)k 0inputs+0outputs (0major+180minor)pagefaults 0swaps [root@ssdandy ~]# BTW: to achieve the 'strace workload' behaviour, i.e. without a explicit '-f', one has to use --no-inherit. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> echo Link: http://lkml.kernel.org/n/tip-`ranpwd -l 24`@git.kernel.org Link: http://lkml.kernel.org/n/tip-2wu2d5n65msxoq1i7vtcaft2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-13 12:32:45 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf tools: Fixup mmap event consumption The tail position of the event buffer should only be modified after actually use that event. If not the event buffer could be invalid before use, and segment fault occurs when invoking perf top -G. Signed-off-by: Zhouyi Zhou <yizhouzhou@ict.ac.cn> Cc: David Ahern <dsahern@gmail.com> Cc: Zhouyi Zhou <yizhouzhou@ict.ac.cn> Link: http://lkml.kernel.org/r/1382600613-32177-1-git-send-email-zhouzhouyi@gmail.com [ Simplified the logic using exit gotos and renamed write_tail method to mmap_consume ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-24 15:43:33 +08:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Separate routine that handles an event from the one that reads it Because we need to use ordered_events in some cases, so we will need to first have them in a queue, order that queue, and then process the event. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-cmkw9zgoh0z4r218957ftp1a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 12:10:29 -08:00
perf tools: Fixup mmap event consumption The tail position of the event buffer should only be modified after actually use that event. If not the event buffer could be invalid before use, and segment fault occurs when invoking perf top -G. Signed-off-by: Zhouyi Zhou <yizhouzhou@ict.ac.cn> Cc: David Ahern <dsahern@gmail.com> Cc: Zhouyi Zhou <yizhouzhou@ict.ac.cn> Link: http://lkml.kernel.org/r/1382600613-32177-1-git-send-email-zhouzhouyi@gmail.com [ Simplified the logic using exit gotos and renamed write_tail method to mmap_consume ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-24 15:43:33 +08:00
perf trace: Check control+C more often We were checking for it only after processing all events in the buffer, delaying processing the termination request for long periods. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9jdbu937curvb35cfzbyss4g@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-03 11:55:07 -03:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: Disable events and drain events when forked workload ends We were not checking in the inner event processing loop if the forked workload had finished, which, on a busy system, may make it take a long time trying to drain events, entering a seemingly neverending loop, waiting for the system to get idle enough to make it drain the buffers. Fix it by disabling the events when 'done' is true, in the inner loop, to start draining what is in the buffers. Now: [root@ssdandy ~]# time trace --filter-pids 14003 -a sleep 1 | tail 996.748 ( 0.002 ms): sh/30296 rt_sigprocmask(how: SETMASK, nset: 0x7ffc83418160, sigsetsize: 8) = 0 996.751 ( 0.002 ms): sh/30296 rt_sigprocmask(how: BLOCK, nset: 0x7ffc834181f0, oset: 0x7ffc83418270, sigsetsize: 8) = 0 996.755 ( 0.002 ms): sh/30296 rt_sigaction(sig: INT, act: 0x7ffc83417f50, oact: 0x7ffc83417ff0, sigsetsize: 8) = 0 1004.543 ( 0.362 ms): tail/30198 ... [continued]: read()) = 4096 1004.548 ( 7.791 ms): sh/30296 wait4(upid: -1, stat_addr: 0x7ffc834181a0) ... 1004.975 ( 0.427 ms): tail/30198 read(buf: 0x7633f0, count: 8192) = 4096 1005.390 ( 0.410 ms): tail/30198 read(buf: 0x765410, count: 8192) = 4096 1005.743 ( 0.348 ms): tail/30198 read(buf: 0x7633f0, count: 8192) = 4096 1006.197 ( 0.449 ms): tail/30198 read(buf: 0x765410, count: 8192) = 4096 1006.492 ( 0.290 ms): tail/30198 read(buf: 0x7633f0, count: 8192) = 4096 real 0m1.219s user 0m0.704s sys 0m0.331s [root@ssdandy ~]# Reported-by: Michael Petlan <mpetlan@redhat.com> Suggested-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-p6kpn1b26qcbe47pufpw0tex@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-22 11:11:57 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Count number of events for each thread and globally The nr_events in trace__run was local, but we will need it in other trace methods, move it to struct trace. We'll also need the number of events per thread, so introduce a nr_events method for that in struct thread_trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:09:46 -03:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Filter out POLLHUP'ed file descriptors So that we don't continue polling on vanished file descriptors, i.e. file descriptors for events monitoring threads that exited. I.e. the following 'trace' command now exits as expected, instead of staying in an eternal loop: $ sleep 5s & $ trace -p `pidof sleep` Reported-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6qegv786zbf6i8us6t4rxug9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-22 14:39:48 -03:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: Filter out POLLHUP'ed file descriptors So that we don't continue polling on vanished file descriptors, i.e. file descriptors for events monitoring threads that exited. I.e. the following 'trace' command now exits as expected, instead of staying in an eternal loop: $ sleep 5s & $ trace -p `pidof sleep` Reported-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6qegv786zbf6i8us6t4rxug9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-22 14:39:48 -03:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf tools: Reference count struct thread We need to do that to stop accumulating entries in the dead_threads linked list, i.e. we were keeping references to threads in struct hists that continue to exist even after a thread exited and was removed from the machine threads rbtree. We still keep the dead_threads list, but just for debugging, allowing us to iterate at any given point over the threads that still are referenced by things like struct hist_entry. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3ejvfyed0r7ue61dkurzjux4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-02 22:21:35 -03:00
perf trace: Improve event processing exit We need to differentiate SIGCHLD from SIGINT, the later should cause as immediate as possible exit, while the former should wait to process the events that may be perceived in the ring buffer after the SIGCHLD is handled. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-16 11:57:33 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: Show path associated with fd in live sessions For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:04:32 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf evlist: Introduce perf_evlist__strerror_tp method Out of 'perf trace', should be used by other tools that uses tracepoints. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lyvtxhchz4ga8fwht15x8wou@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-17 12:07:58 -03:00
perf trace: Improve messages related to /proc/sys/kernel/perf_event_paranoid kernel/events/core.c has: /* * perf event paranoia level: * -1 - not paranoid at all * 0 - disallow raw tracepoint access for unpriv * 1 - disallow cpu events for unpriv * 2 - disallow kernel profiling for unpriv */ int sysctl_perf_event_paranoid __read_mostly = 1; So, with the default being 1, a non-root user can trace his stuff: [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 1 [acme@zoo ~]$ yes > /dev/null & [1] 15338 [acme@zoo ~]$ trace -p 15338 | head -5 0.005 ( 0.005 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.045 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.085 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.125 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.165 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 [acme@zoo ~]$ [acme@zoo ~]$ trace --duration 1 sleep 1 1002.148 (1001.218 ms): nanosleep(rqtp: 0x7fff46c79250 ) = 0 [acme@zoo ~]$ [acme@zoo ~]$ trace -- usleep 1 | tail -5 0.905 ( 0.002 ms): brk( ) = 0x1c82000 0.910 ( 0.003 ms): brk(brk: 0x1ca3000 ) = 0x1ca3000 0.913 ( 0.001 ms): brk( ) = 0x1ca3000 0.990 ( 0.059 ms): nanosleep(rqtp: 0x7fffe31a3280 ) = 0 0.995 ( 0.000 ms): exit_group( [acme@zoo ~]$ But can't do system wide tracing: [acme@zoo ~]$ trace Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 0 Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ If the paranoid level is >= 2, i.e. turn this perf stuff off for !root users: [acme@zoo ~]$ sudo sh -c 'echo 2 > /proc/sys/kernel/perf_event_paranoid' [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 2 [acme@zoo ~]$ [acme@zoo ~]$ trace usleep 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ If the user manages to get what he/she wants, convincing root not to be paranoid at all... [root@zoo ~]# echo -1 > /proc/sys/kernel/perf_event_paranoid [root@zoo ~]# cat /proc/sys/kernel/perf_event_paranoid -1 [root@zoo ~]# [acme@zoo ~]$ ps -eo user,pid,comm | grep Xorg root 729 Xorg [acme@zoo ~]$ [acme@zoo ~]$ trace -a --duration 0.001 -e \!select,ioctl,writev | grep Xorg | head -5 23.143 ( 0.003 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.152 ( 0.004 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = 8 23.161 ( 0.002 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 23.175 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.235 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 [acme@zoo ~]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-di28olfwd28rvkox7v3hqhu1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-17 17:38:29 -03:00
tools lib fs debugfs: Introduce debugfs__strerror_open_tp There will be other cases where not just a tracepoint event is being opened below the debugfs mountpoint, but it is rather common, so provide one helper for that. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q6e6zct49ql6nbcw8kkg0lbj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 11:13:43 -03:00
tools lib api fs: Move debugfs__strerror_open into tracing_path.c object Moving debugfs__strerror_open out of api/fs/debugfs.c, because it's not debugfs specific. It'll be changed to consider tracefs mount as well in following patches. Renaming it into tracing_path__strerror_open_tp to fit into the namespace. No functional change is intended. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: Matt Fleming <matt.fleming@intel.com> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1441180605-24737-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-02 09:56:35 +02:00
tools lib fs debugfs: Introduce debugfs__strerror_open_tp There will be other cases where not just a tracepoint event is being opened below the debugfs mountpoint, but it is rather common, so provide one helper for that. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q6e6zct49ql6nbcw8kkg0lbj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 11:13:43 -03:00
tools lib fs: Pass filename to debugfs__strerror_open It was hardcoded for one specific tracepoint, leftover from its initial user: 'perf trace'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-j1jicvwljy5qx1nah4mkmyke@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 10:52:55 -03:00
tools lib api fs: Move debugfs__strerror_open into tracing_path.c object Moving debugfs__strerror_open out of api/fs/debugfs.c, because it's not debugfs specific. It'll be changed to consider tracefs mount as well in following patches. Renaming it into tracing_path__strerror_open_tp to fit into the namespace. No functional change is intended. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: Matt Fleming <matt.fleming@intel.com> Cc: Raphael Beamonte <raphael.beamonte@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1441180605-24737-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-02 09:56:35 +02:00
perf trace: Improve messages related to /proc/sys/kernel/perf_event_paranoid kernel/events/core.c has: /* * perf event paranoia level: * -1 - not paranoid at all * 0 - disallow raw tracepoint access for unpriv * 1 - disallow cpu events for unpriv * 2 - disallow kernel profiling for unpriv */ int sysctl_perf_event_paranoid __read_mostly = 1; So, with the default being 1, a non-root user can trace his stuff: [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 1 [acme@zoo ~]$ yes > /dev/null & [1] 15338 [acme@zoo ~]$ trace -p 15338 | head -5 0.005 ( 0.005 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.045 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.085 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.125 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.165 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 [acme@zoo ~]$ [acme@zoo ~]$ trace --duration 1 sleep 1 1002.148 (1001.218 ms): nanosleep(rqtp: 0x7fff46c79250 ) = 0 [acme@zoo ~]$ [acme@zoo ~]$ trace -- usleep 1 | tail -5 0.905 ( 0.002 ms): brk( ) = 0x1c82000 0.910 ( 0.003 ms): brk(brk: 0x1ca3000 ) = 0x1ca3000 0.913 ( 0.001 ms): brk( ) = 0x1ca3000 0.990 ( 0.059 ms): nanosleep(rqtp: 0x7fffe31a3280 ) = 0 0.995 ( 0.000 ms): exit_group( [acme@zoo ~]$ But can't do system wide tracing: [acme@zoo ~]$ trace Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 0 Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ If the paranoid level is >= 2, i.e. turn this perf stuff off for !root users: [acme@zoo ~]$ sudo sh -c 'echo 2 > /proc/sys/kernel/perf_event_paranoid' [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 2 [acme@zoo ~]$ [acme@zoo ~]$ trace usleep 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ If the user manages to get what he/she wants, convincing root not to be paranoid at all... [root@zoo ~]# echo -1 > /proc/sys/kernel/perf_event_paranoid [root@zoo ~]# cat /proc/sys/kernel/perf_event_paranoid -1 [root@zoo ~]# [acme@zoo ~]$ ps -eo user,pid,comm | grep Xorg root 729 Xorg [acme@zoo ~]$ [acme@zoo ~]$ trace -a --duration 0.001 -e \!select,ioctl,writev | grep Xorg | head -5 23.143 ( 0.003 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.152 ( 0.004 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = 8 23.161 ( 0.002 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 23.175 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.235 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 [acme@zoo ~]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-di28olfwd28rvkox7v3hqhu1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-17 17:38:29 -03:00
perf trace: Provide a better explanation when mmap fails If we ask for a mmap lenght than the max configured via the relevant sysctl, provide a better warning, instead of just expanding the EPERM returned: [acme@ssdandy ~]$ trace -m 256 -e nanosleep sleep 2 Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_mlock_kb (516 kB) setting. Hint: Tried using 1028 kB. Hint: Try using a bigger -m/--mmap-pages value. [acme@ssdandy ~]$ trace -m 128 -e nanosleep sleep 2 2001.280 (2000.403 ms): nanosleep(rqtp: 0x7fff89a8a7f0) = 0 [acme@ssdandy ~]$ An upcoming patch will autotune the request for non-root users when -m is not used. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-cdvxfz2gycetbkopm9sna1qp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-11 18:04:10 -03:00
perf trace: Improve messages related to /proc/sys/kernel/perf_event_paranoid kernel/events/core.c has: /* * perf event paranoia level: * -1 - not paranoid at all * 0 - disallow raw tracepoint access for unpriv * 1 - disallow cpu events for unpriv * 2 - disallow kernel profiling for unpriv */ int sysctl_perf_event_paranoid __read_mostly = 1; So, with the default being 1, a non-root user can trace his stuff: [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 1 [acme@zoo ~]$ yes > /dev/null & [1] 15338 [acme@zoo ~]$ trace -p 15338 | head -5 0.005 ( 0.005 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.045 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.085 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.125 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.165 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 [acme@zoo ~]$ [acme@zoo ~]$ trace --duration 1 sleep 1 1002.148 (1001.218 ms): nanosleep(rqtp: 0x7fff46c79250 ) = 0 [acme@zoo ~]$ [acme@zoo ~]$ trace -- usleep 1 | tail -5 0.905 ( 0.002 ms): brk( ) = 0x1c82000 0.910 ( 0.003 ms): brk(brk: 0x1ca3000 ) = 0x1ca3000 0.913 ( 0.001 ms): brk( ) = 0x1ca3000 0.990 ( 0.059 ms): nanosleep(rqtp: 0x7fffe31a3280 ) = 0 0.995 ( 0.000 ms): exit_group( [acme@zoo ~]$ But can't do system wide tracing: [acme@zoo ~]$ trace Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 0 Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ If the paranoid level is >= 2, i.e. turn this perf stuff off for !root users: [acme@zoo ~]$ sudo sh -c 'echo 2 > /proc/sys/kernel/perf_event_paranoid' [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 2 [acme@zoo ~]$ [acme@zoo ~]$ trace usleep 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ If the user manages to get what he/she wants, convincing root not to be paranoid at all... [root@zoo ~]# echo -1 > /proc/sys/kernel/perf_event_paranoid [root@zoo ~]# cat /proc/sys/kernel/perf_event_paranoid -1 [root@zoo ~]# [acme@zoo ~]$ ps -eo user,pid,comm | grep Xorg root 729 Xorg [acme@zoo ~]$ [acme@zoo ~]$ trace -a --duration 0.001 -e \!select,ioctl,writev | grep Xorg | head -5 23.143 ( 0.003 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.152 ( 0.004 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = 8 23.161 ( 0.002 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 23.175 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.235 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 [acme@zoo ~]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-di28olfwd28rvkox7v3hqhu1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-17 17:38:29 -03:00
perf evlist: Introduce perf_evlist__strerror_tp method Out of 'perf trace', should be used by other tools that uses tracepoints. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-lyvtxhchz4ga8fwht15x8wou@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-17 12:07:58 -03:00
perf trace: Improve the error messages Currently, execution of 'perf trace' reports the following cryptic message to the user: $ perf trace Couldn't read the raw_syscalls tracepoints information! Typically this happens because the user does not have permissions to read the debugfs filesystem. Also handle the case when the kernel was not compiled with debugfs support or when it isn't mounted. Now, the tool prints detailed error messages: $ perf trace Error: Unable to find debugfs Hint: Was your kernel was compiled with debugfs support? Hint: Is the debugfs filesystem mounted? Hint: Try 'sudo mount -t debugfs nodev /sys/kernel/debug' $ perf trace Error: No permissions to read /sys/kernel/debug//tracing/events/raw_syscalls Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug/' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1380863851-14460-1-git-send-email-artagnon@gmail.com [ Added ready to use commands to fix the issues as extra hints, use the current debugfs mount point when reporting permission error, use strerror_r instead of the deprecated sys_errlist, as reported by David Ahern ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-04 10:47:31 +05:30
perf evlist: Make perf_evlist__set_filter use perf_evsel__set_filter Instead of calling perf_evsel__apply_filter straight away, so that we can, in the next patches, expand the filter with more conditions before actually calling the ioctl to pass the end result filter to the kernel. Now we need to call perf_evlist__apply_filters() after the filter is completely setup, i.e. do the ioctl calls. The perf_evlist__apply_filters() method was already in place, because that is the model for the other tools that receives filters in the command line: go on setting then in the evsel->filter and only at the end, after parsing the whole command line, apply them. We get, as a bonus, a more expressive message that states which event, if any, failed to have the filter applied to, with an error message stating what happened. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f429pgz75ryz7tpe6v74etre@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-03 17:42:03 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Fix error reporting for evsel pgfault constructor In that case the only failure possible is not to have enough memory, as we are just creating the evsels, not trying to access any system facility such as debugfs files or syscalls. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-7k6asvfhiwiu2zs6o2oknchk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-22 11:08:04 -03:00
perf trace: Use event filters for the event qualifier list We use raw_syscalls:sys_{enter,exit} events to show the syscalls, but were using a rather lazy/inneficient way to implement our 'strace -e' equivalent: filter out after reading the events in the ring buffer. Deflect more work to the kernel by appending a filter expression for that, that, together with the pid list, that is always present, if only to filter the tracer itself, reduces pressure on the ring buffer and otherwise use infrastructure already in place in the kernel to do early filtering. If we use it with -v we can see the filter passed to the kernel, for instance, for this contrieved case: # trace -v -e \!open,close,write,poll,recvfrom,select,recvmsg,writev,sendmsg,read,futex,epoll_wait,ioctl,eventfd --filter-pids 2189,2566,1398,2692,4475,4532 <SNIP> (common_pid != 2514 && common_pid != 1398 && common_pid != 2189 && common_pid != 2566 && common_pid != 2692 && common_pid != 4475 && common_pid != 4532) && (id != 3 && id != 232 && id != 284 && id != 202 && id != 16 && id != 2 && id != 7 && id != 0 && id != 45 && id != 47 && id != 23 && id != 46 && id != 1 && id != 20) 0.011 (0.011 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 16.946 (0.019 ms): caribou/2295 eventfd2(flags: CLOEXEC|NONBLOCK) = 18 38.598 (0.167 ms): chronyd/794 socket(family: INET, type: DGRAM ) = 4 38.603 (0.002 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: GETFD) = 0 38.605 (0.001 ms): chronyd/794 fcntl(fd: 4<socket:[239307]>, cmd: SETFD, arg: 1) = 0 ^C # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ti2tg18atproqpguc2moinp6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-04 12:44:59 -03:00
perf trace: Improve messages related to /proc/sys/kernel/perf_event_paranoid kernel/events/core.c has: /* * perf event paranoia level: * -1 - not paranoid at all * 0 - disallow raw tracepoint access for unpriv * 1 - disallow cpu events for unpriv * 2 - disallow kernel profiling for unpriv */ int sysctl_perf_event_paranoid __read_mostly = 1; So, with the default being 1, a non-root user can trace his stuff: [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 1 [acme@zoo ~]$ yes > /dev/null & [1] 15338 [acme@zoo ~]$ trace -p 15338 | head -5 0.005 ( 0.005 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.045 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.085 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.125 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 0.165 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096 [acme@zoo ~]$ [acme@zoo ~]$ trace --duration 1 sleep 1 1002.148 (1001.218 ms): nanosleep(rqtp: 0x7fff46c79250 ) = 0 [acme@zoo ~]$ [acme@zoo ~]$ trace -- usleep 1 | tail -5 0.905 ( 0.002 ms): brk( ) = 0x1c82000 0.910 ( 0.003 ms): brk(brk: 0x1ca3000 ) = 0x1ca3000 0.913 ( 0.001 ms): brk( ) = 0x1ca3000 0.990 ( 0.059 ms): nanosleep(rqtp: 0x7fffe31a3280 ) = 0 0.995 ( 0.000 ms): exit_group( [acme@zoo ~]$ But can't do system wide tracing: [acme@zoo ~]$ trace Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 0 Error: Operation not permitted. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 1. [acme@zoo ~]$ If the paranoid level is >= 2, i.e. turn this perf stuff off for !root users: [acme@zoo ~]$ sudo sh -c 'echo 2 > /proc/sys/kernel/perf_event_paranoid' [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid 2 [acme@zoo ~]$ [acme@zoo ~]$ trace usleep 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ [acme@zoo ~]$ trace --cpu 1 Error: Permission denied. Hint: Check /proc/sys/kernel/perf_event_paranoid setting. Hint: For your workloads it needs to be <= 1 Hint: For system wide tracing it needs to be set to -1. Hint: The current value is 2. [acme@zoo ~]$ If the user manages to get what he/she wants, convincing root not to be paranoid at all... [root@zoo ~]# echo -1 > /proc/sys/kernel/perf_event_paranoid [root@zoo ~]# cat /proc/sys/kernel/perf_event_paranoid -1 [root@zoo ~]# [acme@zoo ~]$ ps -eo user,pid,comm | grep Xorg root 729 Xorg [acme@zoo ~]$ [acme@zoo ~]$ trace -a --duration 0.001 -e \!select,ioctl,writev | grep Xorg | head -5 23.143 ( 0.003 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.152 ( 0.004 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = 8 23.161 ( 0.002 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 23.175 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 23.235 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0 [acme@zoo ~]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-di28olfwd28rvkox7v3hqhu1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-17 17:38:29 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf tools: Add data object to handle perf data file This patch is adding 'struct perf_data_file' object as a placeholder for all attributes regarding perf.data file handling. Changing perf_session__new to take it as an argument. The rest of the functionality will be added later to keep this change simple enough, because all the places using perf_session are changed now. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1381847254-28809-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-15 16:27:32 +02:00
perf trace: Support using -f to override perf.data file ownership Enable perf trace to use perf.data when it is not owned by current user or root. Example: # perf trace record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 4153101 Apr 2 15:28 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f Error: unknown switch `f' usage: perf trace [<options>] [<command>] or: perf trace [<options>] -- <command> [<options>] or: perf trace record [<options>] [<command>] or: perf trace record [<options>] -- <command> [<options>] --event <event> event selector. use 'perf list' to list available events --comm show the thread COMM next to its id --tool_stats show tool stats -e, --expr <expr> list of events to trace -o, --output <file> output file name -i, --input <file> Analyze events in file -p, --pid <pid> trace events on existing process id -t, --tid <tid> trace events on existing thread id --filter-pids <float> ... As shown above, the -f option does not work at all. After this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f 0.056 ( 0.002 ms): ls/47325 brk( ... 0.108 ( 0.018 ms): ls/47325 mmap(len: 4096, prot: READ|WRITE, ... 0.145 ( 0.013 ms): ls/47325 access(filename: 0x7f31259a0eb0, ... 0.172 ( 0.008 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.180 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.185 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.189 ( 0.003 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.195 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.199 ( 0.002 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.205 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.211 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.220 ( 0.007 ms): ls/47325 open(filename: 0x7f312599e8ff, ... ... ... As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-10-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02 21:47:18 +08:00
perf tools: Add data object to handle perf data file This patch is adding 'struct perf_data_file' object as a placeholder for all attributes regarding perf.data file handling. Changing perf_session__new to take it as an argument. The rest of the functionality will be added later to keep this change simple enough, because all the places using perf_session are changed now. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1381847254-28809-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-15 16:27:32 +02:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Fix segfault on perf trace -i perf.data When replaying a previous record session, it'll get a segfault since it doesn't initialize raw_syscalls enter/exit tracepoint's evsel->priv for caching the format fields. So fix it by properly initializing sys_enter/exit evsels that comes from reading the perf.data file header. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-2-git-send-email-namhyung@kernel.org [ Split the syscall tp field caching part in the previous patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 15:25:00 +09:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Add mmap2 handler 5c5e854b changed perf_event__synthesize_mmap_events to generate MMAP2 events. Since perf-trace does not have a handler for it it dies with a segfault when trying to process files: perf trace -i /tmp/perf.data Segmentation fault Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1379900700-5186-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-22 19:44:58 -06:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf tools: Rename ordered_samples bool to ordered_events The time ordering is generic for all kinds of events, so using generic name 'ordered_events' for ordered_samples bool in perf_tool struct. No functional change was intended. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-07mrqzcuhsks9wfmxrzsvemz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-06 14:18:21 +02:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf tools: Add data object to handle perf data file This patch is adding 'struct perf_data_file' object as a placeholder for all attributes regarding perf.data file handling. Changing perf_session__new to take it as an argument. The rest of the functionality will be added later to keep this change simple enough, because all the places using perf_session are changed now. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1381847254-28809-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-15 16:27:32 +02:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf tools: Modify error code for when perf_session__new() fails Because perf_session__new() can fail for more reasons than just ENOMEM, modify error code(ENOMEM or EINVAL) to -1. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1411522417-9917-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-24 10:33:37 +09:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf tools: Check recorded kernel version when finding vmlinux Currently vmlinux_path__init() only tries to find vmlinux file from current directory, /boot and some canonical directories with version number of the running kernel. This can be a problem when reporting old data recorded on a kernel version not running currently. We can use --symfs option for this but it's annoying for user to do it always. As we already have the info in the perf.data file, it can be changed to use it for the search automatically. Before: $ perf report ... # Samples: 4K of event 'cpu-clock' # Event count (approx.): 1067250000 # # Overhead Command Shared Object Symbol # ........ .......... ................. .............................. 71.87% swapper [kernel.kallsyms] [k] recover_probed_instruction After: # Overhead Command Shared Object Symbol # ........ .......... ................. .................... 71.87% swapper [kernel.kallsyms] [k] native_safe_halt This requires to change signature of symbol__init() to receive struct perf_session_env *. Reported-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1407825645-24586-14-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-12 15:40:45 +09:00
perf trace: Move call to symbol__init() after creating session This is a preparation of fixing dso__load_kernel_sym(). It needs a session info before calling symbol__init(). Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1407825645-24586-13-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-08-12 15:40:44 +09:00
perf trace: Fix comm resolution when reading events from file Task comm's are getting lost when processing events from a file. The problem is that the trace struct used by the live processing has its host machine and the perf-session used for file based processing has its host machine. Fix by having both references point to the same machine. Before: 0.030 ( 0.001 ms): :27743/27743 brk( ... 0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... After: 0.030 ( 0.001 ms): make/27743 brk( ... 0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com [ Moved creation of new host machine to a separate constructor: machine__new_host() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:00 -06:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Fix segfault on perf trace -i perf.data When replaying a previous record session, it'll get a segfault since it doesn't initialize raw_syscalls enter/exit tracepoint's evsel->priv for caching the format fields. So fix it by properly initializing sys_enter/exit evsels that comes from reading the perf.data file header. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-2-git-send-email-namhyung@kernel.org [ Split the syscall tp field caching part in the previous patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 15:25:00 +09:00
perf trace: Add support for syscalls vs raw_syscalls Older kernels (e.g., RHEL6) do system call tracing via syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to detect lack of raw_syscalls support and try syscalls. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:39 -07:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Fix segfault on perf trace -i perf.data When replaying a previous record session, it'll get a segfault since it doesn't initialize raw_syscalls enter/exit tracepoint's evsel->priv for caching the format fields. So fix it by properly initializing sys_enter/exit evsels that comes from reading the perf.data file header. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-2-git-send-email-namhyung@kernel.org [ Split the syscall tp field caching part in the previous patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 15:25:00 +09:00
perf trace: Add support for syscalls vs raw_syscalls Older kernels (e.g., RHEL6) do system call tracing via syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to detect lack of raw_syscalls support and try syscalls. Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-12-04 19:41:39 -07:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Fix segfault on perf trace -i perf.data When replaying a previous record session, it'll get a segfault since it doesn't initialize raw_syscalls enter/exit tracepoint's evsel->priv for caching the format fields. So fix it by properly initializing sys_enter/exit evsels that comes from reading the perf.data file header. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-2-git-send-email-namhyung@kernel.org [ Split the syscall tp field caching part in the previous patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 15:25:00 +09:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Honor target pid / tid options when analyzing a file Allows capture of raw_syscall events for all processes or threads in a task and then analyzing specific ones. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:53 -06:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf ordered_events: Shorten function signatures By keeping pointers to machines, evlist and tool in ordered_events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0c6huyaf59mqtm2ek9pmposl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-03 11:58:45 -03:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Simplify '--summary' output The output of 'perf trace --summary' tries to be too cute with formatting and makes it very hard to read. Simplify it in the spirit of "strace -c": [penberg@localhost libtrading]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: dbus-daemon (555), 10 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ sendmsg 2 0.002 0.005 0.008 55.00 recvmsg 2 0.002 0.003 0.005 44.00 epoll_wait 1 0.000 0.000 0.000 0.00 NetworkManager (667), 56 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ poll 2 0.000 0.002 0.003 100.00 sendmsg 10 0.004 0.007 0.016 15.41 recvmsg 16 0.002 0.003 0.005 8.24 zfs-fuse (669), 4 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ futex 2 0.000 0.001 0.002 100.00 Signed-off-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384267334-18953-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:42:14 +02:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Add total time column to summary. It is cumbersome to manually calculate the total time spent in a given syscall by multiplying the average value with the number of calls. Instead, we now do this directly inside perf trace. Note that this is also done by 'strace', which even adds a column with relative numbers - something we could do in the future. Example: perf trace -s find /some/folder > /dev/null Summary of events: find (19976), 700123 events, 100.0%, 0.000 msec syscall calls total min avg max stddev (msec) (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- --------- ------ read 4 0.006 0.001 0.002 0.003 27.42% write 8046 9.617 0.001 0.001 0.035 0.56% open 34196 40.384 0.001 0.001 0.071 0.30% close 68375 57.104 0.001 0.001 0.076 0.25% stat 4 0.004 0.001 0.001 0.001 3.14% fstat 34189 27.518 0.001 0.001 0.060 0.34% mmap 13 0.029 0.001 0.002 0.003 10.74% mprotect 6 0.018 0.002 0.003 0.005 17.04% munmap 3 0.014 0.003 0.005 0.006 24.87% brk 87 0.490 0.001 0.006 0.016 6.50% ioctl 3 0.004 0.001 0.001 0.003 36.39% access 1 0.004 0.004 0.004 0.004 0.00% uname 1 0.001 0.001 0.001 0.001 0.00% getdents 68393 143.600 0.001 0.002 0.187 0.95% fchdir 68371 56.980 0.001 0.001 0.111 0.39% arch_prctl 1 0.001 0.001 0.001 0.001 0.00% openat 34184 41.737 0.001 0.001 0.102 0.41% newfstatat 34184 41.180 0.001 0.001 0.064 0.34% Signed-off-by: Milian Wolff <milian.wolff@kdab.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> LPU-Reference: 1438853069-5902-1-git-send-email-milian.wolff@kdab.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-06 11:24:29 +02:00
perf trace: Simplify '--summary' output The output of 'perf trace --summary' tries to be too cute with formatting and makes it very hard to read. Simplify it in the spirit of "strace -c": [penberg@localhost libtrading]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: dbus-daemon (555), 10 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ sendmsg 2 0.002 0.005 0.008 55.00 recvmsg 2 0.002 0.003 0.005 44.00 epoll_wait 1 0.000 0.000 0.000 0.00 NetworkManager (667), 56 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ poll 2 0.000 0.002 0.003 100.00 sendmsg 10 0.004 0.007 0.016 15.41 recvmsg 16 0.002 0.003 0.005 8.24 zfs-fuse (669), 4 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ futex 2 0.000 0.001 0.002 100.00 Signed-off-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384267334-18953-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:42:14 +02:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Simplify '--summary' output The output of 'perf trace --summary' tries to be too cute with formatting and makes it very hard to read. Simplify it in the spirit of "strace -c": [penberg@localhost libtrading]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: dbus-daemon (555), 10 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ sendmsg 2 0.002 0.005 0.008 55.00 recvmsg 2 0.002 0.003 0.005 44.00 epoll_wait 1 0.000 0.000 0.000 0.00 NetworkManager (667), 56 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ poll 2 0.000 0.002 0.003 100.00 sendmsg 10 0.004 0.007 0.016 15.41 recvmsg 16 0.002 0.003 0.005 8.24 zfs-fuse (669), 4 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ futex 2 0.000 0.001 0.002 100.00 Signed-off-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384267334-18953-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:42:14 +02:00
perf trace: Add total time column to summary. It is cumbersome to manually calculate the total time spent in a given syscall by multiplying the average value with the number of calls. Instead, we now do this directly inside perf trace. Note that this is also done by 'strace', which even adds a column with relative numbers - something we could do in the future. Example: perf trace -s find /some/folder > /dev/null Summary of events: find (19976), 700123 events, 100.0%, 0.000 msec syscall calls total min avg max stddev (msec) (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- --------- ------ read 4 0.006 0.001 0.002 0.003 27.42% write 8046 9.617 0.001 0.001 0.035 0.56% open 34196 40.384 0.001 0.001 0.071 0.30% close 68375 57.104 0.001 0.001 0.076 0.25% stat 4 0.004 0.001 0.001 0.001 3.14% fstat 34189 27.518 0.001 0.001 0.060 0.34% mmap 13 0.029 0.001 0.002 0.003 10.74% mprotect 6 0.018 0.002 0.003 0.005 17.04% munmap 3 0.014 0.003 0.005 0.006 24.87% brk 87 0.490 0.001 0.006 0.016 6.50% ioctl 3 0.004 0.001 0.001 0.003 36.39% access 1 0.004 0.004 0.004 0.004 0.00% uname 1 0.001 0.001 0.001 0.001 0.00% getdents 68393 143.600 0.001 0.002 0.187 0.95% fchdir 68371 56.980 0.001 0.001 0.111 0.39% arch_prctl 1 0.001 0.001 0.001 0.001 0.00% openat 34184 41.737 0.001 0.001 0.102 0.41% newfstatat 34184 41.180 0.001 0.001 0.064 0.34% Signed-off-by: Milian Wolff <milian.wolff@kdab.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> LPU-Reference: 1438853069-5902-1-git-send-email-milian.wolff@kdab.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-06 11:24:29 +02:00
perf trace: Tweak summary output Tweak the summary output as suggested by Ingo Molnar: [penberg@localhost ~]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: Xorg (817), 148 events, 0.0%, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 7 0.002 0.004 0.011 32.00% rt_sigprocmask 40 0.001 0.001 0.002 1.31% ioctl 6 0.002 0.003 0.005 19.45% writev 7 0.004 0.018 0.059 43.76% select 9 0.000 74.513 507.869 74.61% setitimer 4 0.001 0.002 0.002 10.08% Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Pekka Enberg <penberg@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384345308-24404-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-13 14:21:48 +02:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Use new machine method to loop over threads Use the new machine method that loops over threads to dump summary data. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:12:59 -06:00
perf trace: Use thread_{,_set}_priv helpers This is mechanical changes only for accounting access to thread->priv properly in the source level. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1412556363-26229-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-06 09:46:03 +09:00
perf trace: Use new machine method to loop over threads Use the new machine method that loops over threads to dump summary data. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:12:59 -06:00
perf trace: Remove thread summary coloring Thread summary line coloring looks ugly. It doesn't add much value so remove coloring completely. Signed-off-by: Pekka Enberg <penberg@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1384447410-1771-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14 18:43:30 +02:00
perf trace: Simplify '--summary' output The output of 'perf trace --summary' tries to be too cute with formatting and makes it very hard to read. Simplify it in the spirit of "strace -c": [penberg@localhost libtrading]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: dbus-daemon (555), 10 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ sendmsg 2 0.002 0.005 0.008 55.00 recvmsg 2 0.002 0.003 0.005 44.00 epoll_wait 1 0.000 0.000 0.000 0.00 NetworkManager (667), 56 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ poll 2 0.000 0.002 0.003 100.00 sendmsg 10 0.004 0.007 0.016 15.41 recvmsg 16 0.002 0.003 0.005 8.24 zfs-fuse (669), 4 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ futex 2 0.000 0.001 0.002 100.00 Signed-off-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384267334-18953-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:42:14 +02:00
perf trace: Remove thread summary coloring Thread summary line coloring looks ugly. It doesn't add much value so remove coloring completely. Signed-off-by: Pekka Enberg <penberg@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1384447410-1771-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14 18:43:30 +02:00
perf trace: Add pagefault statistics 'perf trace' can show summary of events using -S option. This commit also reports number of major/minor pagefault events in this summary. $ perf trace -s --pf all -- sleep 1 Summary of events: sleep (18604), 275 events, 99.6%, 197 minfaults, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 2 0.000 0.001 0.002 100.00% open 3 0.004 0.005 0.007 21.13% close 3 0.001 0.001 0.001 1.37% fstat 3 0.001 0.002 0.002 10.66% mmap 8 0.002 0.004 0.006 10.69% mprotect 4 0.003 0.005 0.008 24.68% munmap 1 0.005 0.005 0.005 0.00% brk 3 0.001 0.002 0.003 28.08% access 3 0.002 0.003 0.005 24.48% nanosleep 1 1000.747 1000.747 1000.747 0.00% execve 8 0.000 0.033 0.246 91.00% arch_prctl 1 0.001 0.001 0.001 0.00% Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1404842716-19190-1-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-07-08 22:05:16 +04:00
perf trace: Simplify '--summary' output The output of 'perf trace --summary' tries to be too cute with formatting and makes it very hard to read. Simplify it in the spirit of "strace -c": [penberg@localhost libtrading]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: dbus-daemon (555), 10 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ sendmsg 2 0.002 0.005 0.008 55.00 recvmsg 2 0.002 0.003 0.005 44.00 epoll_wait 1 0.000 0.000 0.000 0.00 NetworkManager (667), 56 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ poll 2 0.000 0.002 0.003 100.00 sendmsg 10 0.004 0.007 0.016 15.41 recvmsg 16 0.002 0.003 0.005 8.24 zfs-fuse (669), 4 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ futex 2 0.000 0.001 0.002 100.00 Signed-off-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384267334-18953-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:42:14 +02:00
perf trace: Add summary option to dump syscall statistics When enabled dumps a summary of all syscalls by task with the usual statistics -- min, max, average and relative stddev. For example, make - 26341 : 3344 [ 17.4% ] 0.000 ms read : 52 0.000 4.802 0.644 30.08 write : 20 0.004 0.036 0.010 21.72 open : 24 0.003 0.046 0.014 23.68 close : 64 0.002 0.055 0.008 22.53 stat : 2714 0.002 0.222 0.004 4.47 fstat : 18 0.001 0.041 0.006 46.26 mmap : 30 0.003 0.009 0.006 5.71 mprotect : 8 0.006 0.039 0.016 32.16 munmap : 12 0.007 0.077 0.020 38.25 brk : 48 0.002 0.014 0.004 10.18 rt_sigaction : 18 0.002 0.002 0.002 2.11 rt_sigprocmask : 60 0.002 0.128 0.010 32.88 access : 2 0.006 0.006 0.006 0.00 pipe : 12 0.004 0.048 0.013 35.98 vfork : 34 0.448 0.980 0.692 3.04 execve : 20 0.000 0.387 0.046 56.66 wait4 : 34 0.017 9923.287 593.221 68.45 fcntl : 8 0.001 0.041 0.013 48.79 getdents : 48 0.002 0.079 0.013 19.62 getcwd : 2 0.005 0.005 0.005 0.00 chdir : 2 0.070 0.070 0.070 0.00 getrlimit : 2 0.045 0.045 0.045 0.00 arch_prctl : 2 0.002 0.002 0.002 0.00 setrlimit : 2 0.002 0.002 0.002 0.00 openat : 94 0.003 0.005 0.003 2.11 Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-08 21:26:53 -06:00
perf trace: Use new machine method to loop over threads Use the new machine method that loops over threads to dump summary data. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:12:59 -06:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Use new machine method to loop over threads Use the new machine method that loops over threads to dump summary data. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:12:59 -06:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Use new machine method to loop over threads Use the new machine method that loops over threads to dump summary data. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:12:59 -06:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Use new machine method to loop over threads Use the new machine method that loops over threads to dump summary data. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:12:59 -06:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Add duration filter Example: [acme@sandy linux]$ perf trace --duration 0.025 usleep 1 2.221 ( 0.958 ms): 6724 execve(arg0: 140733557168278, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = -2 3.690 ( 1.443 ms): 6724 execve(arg0: 140733557168295, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = 0 3.979 ( 0.048 ms): 6724 open(filename: 208733843841, flags: 0, mode: 1 ) = 3 4.071 ( 0.075 ms): 6724 open(filename: 139744419925673, flags: 0, mode: 0 ) = 3 4.318 ( 0.056 ms): 6724 nanosleep(rqtp: 140734030404608, rmtp: 0 ) = 0 [acme@sandy linux]$ perf trace --duration 0.100 usleep 1 1.143 ( 1.021 ms): 6726 execve(arg0: 140736323962279, arg1: 140736323972752, arg2: 34926752, arg3: 140736323961824, arg4: 7955998171588342573, arg5: 6725) = 0 [acme@sandy linux]$ Cherry picked from tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-oslw2j2958we9qf0ctra4whd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-08 09:56:00 -03:00
perf trace: Introduce --filter-pids When tracing in X we get event loops due to the tracing activity, i.e. updates to a gnome-terminal that generate syscalls for X.org, etc. To get a more useful view of what is happening, syscall wise, system wide, we need to filter those, like in: # ps ax|egrep '981|2296|1519' | grep -v egrep 981 tty1 Ss+ 5:40 /usr/bin/Xorg :0 -background none ... 1519 ? Sl 2:22 /usr/bin/gnome-shell 2296 ? Sl 4:16 /usr/libexec/gnome-terminal-server # # trace -e write --filter-pids 981,2296,1519 0.385 ( 0.021 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 0.922 ( 0.014 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5006.525 ( 0.029 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 136) = 136 5007.235 ( 0.023 ms): goa-daemon/2061 write(fd: 1</dev/null>, buf: 0x7fbeb017b000, count: 140) = 140 5177.646 ( 0.018 ms): rtkit-daemon/782 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7f7eea70be88, count: 8) = 8 8314.497 ( 0.004 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af7b0, count: 8) = 8 8314.518 ( 0.002 ms): gsd-locate-poi/2084 write(fd: 5<anon_inode:[eventfd]>, buf: 0x7fffe96af0e0, count: 8) = 8 ^C# When this option is used the tracer pid is also filtered. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f5qmiyy7c0uxdm21ncatpeek@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-21 11:36:52 -08:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf tools: Add the bash completion for listing subsubcommands of perf trace The bash completion does not support listing subsubcommands for 'perf trace <TAB>', so fix it. Example: Before this patch: $ perf trace <TAB> $ As shown above, the subsubcommands of perf trace does not come out. After this patch: $ perf trace <TAB> record As shown above, the subsubcommands of perf trace can come out now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1426685758-25488-13-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-18 21:35:57 +08:00
perf trace: Add support for tracing workload given by command line Now perf trace is able to trace specified workload by forking it like perf record does. And also finish the tracing if the workload quits or gets SIGINT. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:16 +09:00
perf trace: Add record option The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-28 13:13:01 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf record: Rename --no-delay to --no-buffering That is how the option summary describes it and so that we can free --delay to replace --initial-delay and then be consistent with stat's --delay equivalent option. Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-f8hd2010uhjl2zzb34hepbmi@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-14 17:52:14 -03:00
perf trace: Let the perf_evlist__mmap autosize the number of pages to use So that normal users can run 'trace', we were using a hardcoded 1024 pages value that was more than the default /proc/sys/kernel/perf_event_mlock_kb setting. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3banj3yh0sjz41obxtgiel3a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-12-12 17:28:32 -03:00
perf tools: Configurable per thread proc map processing time out The time out to limit the individual proc map processing was hard code to 500ms. This patch introduce a new option --proc-map-timeout to make the time limit configurable. Signed-off-by: Kan Liang <kan.liang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ying Huang <ying.huang@intel.com> Link: http://lkml.kernel.org/r/1434549071-25611-2-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-17 09:51:11 -04:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Write to stderr by default Without this patch, it is cumbersome to read the trace output but ignoring the normal, potentially verbose, output of the debuggee. One common example is doing something like the following: perf trace -s find /tmp > /dev/null Without this patch, the trace summary will be lost. Now, it will still be printed at the end. This behavior is also applied by strace. Cc: Milian Wolff <milian.wolff@kdab.com> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/n/tip-tqnks6y2cnvm5f9g2dsfr7zl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-05 16:52:23 -03:00
perf trace: Add option to show process COMM Enabled by default, disable with --no-comm, e.g.: 181.821 (0.001 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: PEEK|TRUNC|CMSG_CLOEXEC ) = 20 181.824 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.825 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.834 (0.002 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: CMSG_CLOEXEC ) = 20 181.836 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.838 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.705 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 1256 181.710 (0.002 ms): evolution-addr/10924 geteuid( ) = 1000 181.712 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.727 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 1256 181.731 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.734 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.908 (0.002 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 20 181.913 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.915 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.930 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 20 181.934 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.937 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 220.718 (0.010 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.741 (0.000 ms): dbus-daemon/10711 ... [continued]: epoll_wait()) = 1 220.759 (0.004 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.780 (0.002 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.788 (0.001 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = -1 EAGAIN Resource temporarily unavailable 220.760 (0.004 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.771 (0.023 ms): perf/26347 open(filename: 0xf2e780, mode: 15918976 ) = 19 220.850 (0.002 ms): perf/26347 close(fd: 19 ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6be5jvnkdzjptdrebfn5263n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 12:35:21 -03:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: Add option to show process COMM Enabled by default, disable with --no-comm, e.g.: 181.821 (0.001 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: PEEK|TRUNC|CMSG_CLOEXEC ) = 20 181.824 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.825 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.834 (0.002 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: CMSG_CLOEXEC ) = 20 181.836 (0.001 ms): deja-dup-monit/10784 geteuid( ) = 1000 181.838 (0.001 ms): deja-dup-monit/10784 getegid( ) = 1000 181.705 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 1256 181.710 (0.002 ms): evolution-addr/10924 geteuid( ) = 1000 181.712 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.727 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 1256 181.731 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.734 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.908 (0.002 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 20 181.913 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.915 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 181.930 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC ) = 20 181.934 (0.001 ms): evolution-addr/10924 geteuid( ) = 1000 181.937 (0.001 ms): evolution-addr/10924 getegid( ) = 1000 220.718 (0.010 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.741 (0.000 ms): dbus-daemon/10711 ... [continued]: epoll_wait()) = 1 220.759 (0.004 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.780 (0.002 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = 200 220.788 (0.001 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC ) = -1 EAGAIN Resource temporarily unavailable 220.760 (0.004 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL ) = 200 220.771 (0.023 ms): perf/26347 open(filename: 0xf2e780, mode: 15918976 ) = 19 220.850 (0.002 ms): perf/26347 close(fd: 19 ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6be5jvnkdzjptdrebfn5263n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-12 12:35:21 -03:00
perf trace: Use vfs_getname hook if available Initially it tries to find a probe:vfs_getname that should be setup with: perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string' or with slight changes to cope with code flux in the getname_flags code. In the future, if a "vfs:getname" tracepoint becomes available, then it will be preferred. This is not strictly required and more expensive method of reading the /proc/pid/fd/ symlink will be used when the fd->path array entry is not populated by a previous vfs_getname + open syscall ret sequence. As with any other 'perf probe' probe the setup must be done just once and the probe will be left inactive, waiting for users, be it 'perf trace' of any other tool. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-27 18:06:19 -03:00
perf trace: Clarify that -e is about syscalls, not perf events in general This comes from the desire of having -e/--expr to have the same meaning as for 'strace', while other perf tools use it for --event, which 'trace' honours, i.e. all perf tools have --event in common, but trace uses -e for strace's --expr. Clarify it in the --help output. Reported-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5j94bcsdmcbeu2xthnzsj60d@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-23 12:02:07 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Make command line arguments consistent with perf-record Common arguments like thread id, CPU list, mmap pages, etc should be consistent across perf commands. v3: Updated man page v2: rebased to latest core branch Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1377018945-21940-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 11:15:45 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Fix --filter-pids OPTION description Cut't'paste error, fix it. Reported-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-26abqh0wg9dci3fqcppyrpxy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-23 11:59:20 -03:00
perf trace: Make command line arguments consistent with perf-record Common arguments like thread id, CPU list, mmap pages, etc should be consistent across perf commands. v3: Updated man page v2: rebased to latest core branch Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1377018945-21940-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 11:15:45 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Make command line arguments consistent with perf-record Common arguments like thread id, CPU list, mmap pages, etc should be consistent across perf commands. v3: Updated man page v2: rebased to latest core branch Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1377018945-21940-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 11:15:45 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf tools: Check mmap pages value early Move the check of the mmap_pages value to the options parsing time, so we could rely on this value on other parts of code. Related changes come in the next patches. Also changes perf_evlist::mmap_len to proper size_t type. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1378031796-17892-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-01 12:36:12 +02:00
perf trace: Make command line arguments consistent with perf-record Common arguments like thread id, CPU list, mmap pages, etc should be consistent across perf commands. v3: Updated man page v2: rebased to latest core branch Signed-off-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1377018945-21940-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-20 11:15:45 -06:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Add duration filter Example: [acme@sandy linux]$ perf trace --duration 0.025 usleep 1 2.221 ( 0.958 ms): 6724 execve(arg0: 140733557168278, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = -2 3.690 ( 1.443 ms): 6724 execve(arg0: 140733557168295, arg1: 140733557178768, arg2: 16134304, arg3: 140733557167840, arg4: 7955998171588342573, arg5: 6723) = 0 3.979 ( 0.048 ms): 6724 open(filename: 208733843841, flags: 0, mode: 1 ) = 3 4.071 ( 0.075 ms): 6724 open(filename: 139744419925673, flags: 0, mode: 0 ) = 3 4.318 ( 0.056 ms): 6724 nanosleep(rqtp: 140734030404608, rmtp: 0 ) = 0 [acme@sandy linux]$ perf trace --duration 0.100 usleep 1 1.143 ( 1.021 ms): 6726 execve(arg0: 140736323962279, arg1: 140736323972752, arg2: 34926752, arg3: 140736323961824, arg4: 7955998171588342573, arg5: 6725) = 0 [acme@sandy linux]$ Cherry picked from tmp.perf/trace2 branch. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-oslw2j2958we9qf0ctra4whd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-08 09:56:00 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Add --verbose option Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ain6q4u8g3bpnh18yhw24v2x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-22 16:49:54 -03:00
perf trace: Add option to show full timestamp Current timestamp shown for output is time relative to firt sample. This patch adds an option to show the absolute perf_clock timestamp which is useful when comparing output across commands (e.g., perf-trace to perf-script). Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1378319865-55695-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-04 12:37:43 -06:00
perf trace: Add summary only option Per request from Pekka make --summary a summary only option meaning do not show the individual system calls. Add another option to see all syscalls along with the summary. In addition use 's' and 'S' as shortcuts for the options. Requested-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: David Ahern <dsahern@gmail.com> Tested-by: Pekka Enberg <penberg@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 09:31:15 -07:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Support using -f to override perf.data file ownership Enable perf trace to use perf.data when it is not owned by current user or root. Example: # perf trace record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 4153101 Apr 2 15:28 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f Error: unknown switch `f' usage: perf trace [<options>] [<command>] or: perf trace [<options>] -- <command> [<options>] or: perf trace record [<options>] [<command>] or: perf trace record [<options>] -- <command> [<options>] --event <event> event selector. use 'perf list' to list available events --comm show the thread COMM next to its id --tool_stats show tool stats -e, --expr <expr> list of events to trace -o, --output <file> output file name -i, --input <file> Analyze events in file -p, --pid <pid> trace events on existing process id -t, --tid <tid> trace events on existing thread id --filter-pids <float> ... As shown above, the -f option does not work at all. After this patch: # perf trace -i perf.data File perf.data not owned by current user or root (use -f to override) # perf trace -i perf.data -f 0.056 ( 0.002 ms): ls/47325 brk( ... 0.108 ( 0.018 ms): ls/47325 mmap(len: 4096, prot: READ|WRITE, ... 0.145 ( 0.013 ms): ls/47325 access(filename: 0x7f31259a0eb0, ... 0.172 ( 0.008 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.180 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.185 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.189 ( 0.003 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.195 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.199 ( 0.002 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.205 ( 0.004 ms): ls/47325 open(filename: 0x7fffeb9a0d00, ... 0.211 ( 0.004 ms): ls/47325 stat(filename: 0x7fffeb9a0d00, ... 0.220 ( 0.007 ms): ls/47325 open(filename: 0x7f312599e8ff, ... ... ... As shown above, the -f option really works now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-10-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-02 21:47:18 +08:00
perf tools: Configurable per thread proc map processing time out The time out to limit the individual proc map processing was hard code to 500ms. This patch introduce a new option --proc-map-timeout to make the time limit configurable. Signed-off-by: Kan Liang <kan.liang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ying Huang <ying.huang@intel.com> Link: http://lkml.kernel.org/r/1434549071-25611-2-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-17 09:51:11 -04:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf tools: Add the bash completion for listing subsubcommands of perf trace The bash completion does not support listing subsubcommands for 'perf trace <TAB>', so fix it. Example: Before this patch: $ perf trace <TAB> $ As shown above, the subsubcommands of perf trace does not come out. After this patch: $ perf trace <TAB> record As shown above, the subsubcommands of perf trace can come out now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1426685758-25488-13-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-18 21:35:57 +08:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Validate target task/user/cpu argument Those target options are mutually exclusive so check it before setting up target thread/cpu maps. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:13 +09:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf trace: Dump stack on segfaults [root@ssdandy ~]# perf trace --filter-pids 16348 0.000 ( 0.000 ms): tuned/1027 ... [continued]: select()) = 0 Timeout 793.770 ( 0.000 ms): lsmd/895 ... [continued]: select()) = 0 Timeout 793.775 (793.724 ms): tuned/1027 select(tvp: 0x7f7655556e50) ... perf: Segmentation fault Obtained 15 stack frames. perf(dump_stack+0x2e) [0x4ed330] perf(sighandler_dump_stack+0x2e) [0x4ed40f] /lib64/libc.so.6(+0x35640) [0x7fa2d5b69640] perf() [0x4c2d35] perf(machine__findnew_thread+0x39) [0x4c2ed6] perf() [0x454a4d] perf() [0x455f87] perf() [0x456556] perf(cmd_trace+0xa7e) [0x4580af] perf() [0x4867bd] perf() [0x486a1c] perf() [0x486b68] perf(main+0x23b) [0x486ec9] /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fa2d5b55af5] perf() [0x41bd91] [ root@ssdandy ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-v38cbxcnm2yf5qn9u4y4n9ab@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-24 15:35:55 -03:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: Removed duplicated NULL test No need to test trace.evlist against NULL twice. Signed-off-by: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1431347316-30401-2-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-11 12:28:36 +00:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf tools: Add the bash completion for listing subsubcommands of perf trace The bash completion does not support listing subsubcommands for 'perf trace <TAB>', so fix it. Example: Before this patch: $ perf trace <TAB> $ As shown above, the subsubcommands of perf trace does not come out. After this patch: $ perf trace <TAB> record As shown above, the subsubcommands of perf trace can come out now. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1426685758-25488-13-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-03-18 21:35:57 +08:00
perf trace: Add summary only option Per request from Pekka make --summary a summary only option meaning do not show the individual system calls. Add another option to see all syscalls along with the summary. In addition use 's' and 'S' as shortcuts for the options. Requested-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: David Ahern <dsahern@gmail.com> Tested-by: Pekka Enberg <penberg@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 09:31:15 -07:00
perf trace: Add support for pagefault tracing This patch adds optional pagefault tracing support to 'perf trace'. Using -F/--pf option user can specify whether he wants minor, major or all pagefault events to be traced. This patch adds only live mode, record and replace will come in a separate patch. Example output: 1756272.905 ( 0.000 ms): curl/5937 majfault [0x7fa7261978b6] => /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0@0x85288 (d.) 1862866.036 ( 0.000 ms): wget/8460 majfault [__clear_user+0x3f] => 0x659cb4 (?k) Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:25 +04:00
perf trace: Allow mixing with other events Basically adopting 'perf record' --event command line argument syntax: # trace -e \!mprotect,mmap,munmap,open,close,read,fstat,access,arch_prctl --event sched:*switch,sched:*exec,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/bin/usleep pid=24732 old_pid=24732) 0.078 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.430 (0.002 ms): usleep/24732 brk( ) = 0x78f000 0.434 (0.003 ms): usleep/24732 brk(brk: 0x7b0000 ) = 0x7b0000 0.438 (0.001 ms): usleep/24732 brk( ) = 0x7b0000 0.460 (0.004 ms): usleep/24732 nanosleep(rqtp: 0x7ffff3696a40) ... 0.460 ( ): sched:sched_switch:prev_comm=usleep prev_pid=24732 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120) 0.515 (0.058 ms): usleep/24732 ... [continued]: nanosleep()) = 0 0.520 (0.000 ms): usleep/24732 exit_group( 0.550 ( ): sched:sched_process_exit:comm=usleep pid=24732 prio=120) # Next steps, probably in this order: 1) Use ordered_events code, the logic in trace needs the events to be time ordered when needed, i.e. when multiple CPUs are involved. 2) Callchains! 3) Automatically account for interruptions when saying how long things took. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gpst8mph575yb4wgf91qibyb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-03 12:58:57 -03:00
perf trace: Add pagefaults record and replay support Previous commit added live pagefault trace support, this one adds record and replay support. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace -F all record -a sleep 10 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 1029.722 MB perf.data (~44989242 samples) ] [root@zoo /]# ls -la perf.data -rw-------. 1 root root 1083921722 Jun 26 17:44 perf.data [root@zoo /]# perf evlist raw_syscalls:sys_enter raw_syscalls:sys_exit major-faults minor-faults [root@zoo /]# trace -i perf.data | grep -v trace\/ | tail -15 156.137 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.139 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.140 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0xc4] => 0x0 (?.) 156.144 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.151 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.158 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.161 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.168 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.172 ( 0.000 ms): perl/18476 minfault [0xb4243] => 0x0 (?.) 156.173 ( 0.000 ms): perl/18476 minfault [_int_free+0xda] => 0x0 (?.) 156.183 ( 0.000 ms): perl/18476 minfault [Perl_hfree_next_entry+0xb4] => 0x0 (?.) 156.197 ( 0.000 ms): perl/18476 minfault [_int_free+0x1df] => 0x0 (?.) 156.216 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) 156.221 ( 0.000 ms): perl/18476 minfault [Perl_sv_clear+0x123] => 0x0 (?.) [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-4-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:26 +04:00
perf trace: Support --events foo:bar --no-syscalls I.e. support tracing just tracepoints, without strace like raw_syscalls:*. [acme@ssdandy linux]$ trace --no-sys --ev sched:*exec,sched:*switch,sched:*exit usleep 1 0.048 ( ): sched:sched_process_exec:filename=/usr/bin/usleep pid=27298 old_pid=27298) 0.369 ( ): sched:sched_switch:usleep:27298 [120] S ==> swapper/5:0 [120]) 0.452 ( ): sched:sched_process_exit:comm=usleep pid=27298 prio=120) [acme@ssdandy linux]$ TODO: remove that (...) thing when --no-syscalls is specified. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vn0hsixsbhm31b2rpj97r96k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-02-06 10:16:45 +01:00
perf trace: Add possibility to switch off syscall events Currently, we may either trace syscalls or syscalls+pagefaults. We'd like to be able to trace *only* pagefaults and this commit implements this feature. Example: [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F -p `pidof xchat` 0.000 ( 0.000 ms): xchat/4574 majfault [g_unichar_get_script+0x11] => /usr/lib64/libglib-2.0.so.0.3800.2@0xc403b (x.) 0.202 ( 0.000 ms): xchat/4574 majfault [_cairo_hash_table_lookup+0x53] => 0x2280ff0 (?.) 20.854 ( 0.000 ms): xchat/4574 majfault [gdk_cairo_set_source_pixbuf+0x110] => /usr/bin/xchat@0x6da1f (x.) 1022.000 ( 0.000 ms): xchat/4574 majfault [__memcpy_sse2_unaligned+0x29] => 0x7ff5a8ca0400 (?.) ^C[root@zoo /]# Below we can see malloc calls, 'trace' reading symbol tables in libraries to resolve symbols, etc. [root@zoo /]# echo 1 > /proc/sys/vm/drop_caches ; trace --no-syscalls -F all --cpu 1 sleep 10 0.000 ( 0.000 ms): chrome/26589 minfault [0x1b53129] => /tmp/perf-26589.map@0x33cbcbf7f000 (x.) 96.477 ( 0.000 ms): libvirtd/947 minfault [copy_user_enhanced_fast_string+0x5] => 0x7f7685bba000 (?k) 113.164 ( 0.000 ms): Xorg/1063 minfault [0x786da] => 0x7fce52882a3c (?.) 7162.801 ( 0.000 ms): chrome/3747 minfault [0x8e1a89] => 0xfcaefed0008 (?.) <SNIP> 7773.138 ( 0.000 ms): chrome/3886 minfault [0x8e1a89] => 0xfcb0ce28008 (?.) 7992.022 ( 0.000 ms): chrome/26574 minfault [0x1b5a708] => 0x3de7b5fc5000 (?.) 8108.949 ( 0.000 ms): qemu-system-x8/4537 majfault [_int_malloc+0xee] => 0x7faffc466d60 (?.) 8108.975 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc466d60 (?.) <SNIP> 8148.174 ( 0.000 ms): qemu-system-x8/4537 minfault [_int_malloc+0x102] => 0x7faffc4eb500 (?.) 8270.855 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0xdb] => 0x45d092bc004 (?.) 8270.869 ( 0.000 ms): chrome/26245 minfault [do_bo_emit_reloc+0x108] => 0x45d09150000 (?.) no symbols found in /usr/lib64/libspice-server.so.1.9.0, maybe install a debug package? 8273.831 ( 0.000 ms): trace/20198 majfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libspice-server.so.1.9.0@0xdf000 (d.) <SNIP> 8275.121 ( 0.000 ms): trace/20198 minfault [dso__load+0x38] => 0x14fe756 (?.) no symbols found in /usr/lib64/libelf-0.158.so, maybe install a debug package? 8275.142 ( 0.000 ms): trace/20198 minfault [__memcmp_sse4_1+0xbc6] => /usr/lib64/libelf-0.158.so@0x0 (d.) <SNIP> [root@zoo /]# Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1403799268-1367-6-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-06-26 20:14:28 +04:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Support ! in -e expressions So that we can ask for all but a set of syscalls to be traced. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9j6hvap23qanyl96wx4mrj9k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-21 12:56:21 -03:00
perf trace: Support 'strace' syscall event groups I.e.: $ cat ~/share/perf-core/strace/groups/file access chmod creat execve faccessat getcwd lstat mkdir open openat quotactl readlink rename rmdir stat statfs symlink unlink $ Then, on a quiet desktop, try running this and then moving your mouse to see the deluge of mouse related activity: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # # trace --ev probe:vfs_getname --filter-pids 2232 -e file 0.042 (0.042 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.042 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/xterm") 0.100 (0.100 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.142 (0.018 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.142 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/index.theme") 0.192 (0.069 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.230 (0.017 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.230 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/usr/share/icons/Adwaita/cursors/xterm") 0.253 (0.041 ms): mousetweaks/2235 ... [continued]: open()) = 14 0.459 (0.008 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.459 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/left_side") 0.468 (0.017 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory Need to combine that raw_syscalls:sys_enter(open) + probe:vfs_getname + raw_syscalls:sys_exit(open) sequence... Now, if you're bored, please write some more syscall groups, like the ones in 'strace' and send it our way :-) Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a42xklu59lcbxp7bbnic74a8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-20 12:02:09 -03:00
perf trace: Support ! in -e expressions So that we can ask for all but a set of syscalls to be traced. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9j6hvap23qanyl96wx4mrj9k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-21 12:56:21 -03:00
perf trace: Support 'strace' syscall event groups I.e.: $ cat ~/share/perf-core/strace/groups/file access chmod creat execve faccessat getcwd lstat mkdir open openat quotactl readlink rename rmdir stat statfs symlink unlink $ Then, on a quiet desktop, try running this and then moving your mouse to see the deluge of mouse related activity: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # # trace --ev probe:vfs_getname --filter-pids 2232 -e file 0.042 (0.042 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.042 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/xterm") 0.100 (0.100 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.142 (0.018 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.142 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/index.theme") 0.192 (0.069 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.230 (0.017 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.230 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/usr/share/icons/Adwaita/cursors/xterm") 0.253 (0.041 ms): mousetweaks/2235 ... [continued]: open()) = 14 0.459 (0.008 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.459 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/left_side") 0.468 (0.017 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory Need to combine that raw_syscalls:sys_enter(open) + probe:vfs_getname + raw_syscalls:sys_exit(open) sequence... Now, if you're bored, please write some more syscall groups, like the ones in 'strace' and send it our way :-) Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Milian Wolff <mail@milianw.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-a42xklu59lcbxp7bbnic74a8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-20 12:02:09 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf trace: Validate syscall list passed via -e argument The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25 19:32:33 -03:00
perf trace: Allow specifying which syscalls to trace Similar to -e in strace, i.e. a comma separated list of syscall names to trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-09 12:28:31 -03:00
perf target: Shorten perf_target__ to target__ Getting unwieldly long, for this app domain should be descriptive enough and the use of __ to separate the class from the method names should help with avoiding clashes with other code bases. Reported-by: David Ahern <dsahern@gmail.com> Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:46:16 -03:00
perf trace: Validate target task/user/cpu argument Those target options are mutually exclusive so check it before setting up target thread/cpu maps. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:13 +09:00
perf target: Shorten perf_target__ to target__ Getting unwieldly long, for this app domain should be descriptive enough and the use of __ to separate the class from the method names should help with avoiding clashes with other code bases. Reported-by: David Ahern <dsahern@gmail.com> Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:46:16 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Validate target task/user/cpu argument Those target options are mutually exclusive so check it before setting up target thread/cpu maps. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:13 +09:00
perf target: Shorten perf_target__ to target__ Getting unwieldly long, for this app domain should be descriptive enough and the use of __ to separate the class from the method names should help with avoiding clashes with other code bases. Reported-by: David Ahern <dsahern@gmail.com> Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:46:16 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf target: Shorten perf_target__ to target__ Getting unwieldly long, for this app domain should be descriptive enough and the use of __ to separate the class from the method names should help with avoiding clashes with other code bases. Reported-by: David Ahern <dsahern@gmail.com> Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:46:16 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00
perf target: Shorten perf_target__ to target__ Getting unwieldly long, for this app domain should be descriptive enough and the use of __ to separate the class from the method names should help with avoiding clashes with other code bases. Reported-by: David Ahern <dsahern@gmail.com> Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-12 16:46:16 -03:00
perf trace: Explicitly enable system-wide mode if no option is given When no target cpu/user/task option is given, perf trace will do its job system wide for all online cpus. Make it explicit to reduce possible confusion when reading code. No functional changes intended. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349413336-26936-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:02:14 +09:00
perf trace: Add option to analyze events in a file versus live Allows capture of raw_syscall:* events and analyzed at a later time. v2: change -i option from inherit to input name for consistency with other perf commands Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1377750593-48046-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-28 22:29:52 -06:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: Implement -o/--output filename To output all 'trace' output to a filename, just like 'strace -ofile' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-19 12:01:10 -03:00
perf trace: Use sched:sched_stat_runtime to provide a thread summary [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox` <SNIP> 17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable 17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout 17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096 ) = -1 EAGAIN Resource temporarily unavailable ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ firefox - 17643 : 18013 [ 72.2% ] 359.110 ms firefox - 17663 : 41 [ 0.2% ] 21.439 ms firefox - 17664 : 6840 [ 27.4% ] 133.642 ms firefox - 17667 : 46 [ 0.2% ] 0.682 ms [root@sandy ~]# This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2 branch. Another example, setting a huge duration filter to get just a system wide summary: [root@sandy ~]# perf trace --duration 10000.0 --sched ^C _____________________________________________________________________ __) Summary of events (__ [ task - pid ] [ events ] [ ratio ] [ runtime ] _____________________________________________________________________ scsi_eh_1 - 258 : 15 [ 0.0% ] 0.133 ms kworker/0:1H - 322 : 13 [ 0.0% ] 0.032 ms jbd2/dm-0-8 - 384 : 4 [ 0.0% ] 0.115 ms flush-253:0 - 470 : 1 [ 0.0% ] 0.027 ms firefox - 950 : 4783 [ 0.1% ] 24.863 ms firefox - 992 : 1883 [ 0.1% ] 6.808 ms firefox - 995 : 35 [ 0.0% ] 0.111 ms ksoftirqd/6 - 4362 : 2 [ 0.0% ] 0.005 ms ksoftirqd/7 - 4365 : 1 [ 0.0% ] 0.007 ms Xorg - 4671 : 148 [ 0.0% ] 0.912 ms gnome-settings- - 4846 : 14 [ 0.0% ] 0.086 ms seahorse-daemon - 4847 : 14 [ 0.0% ] 0.092 ms gnome-panel - 4875 : 46 [ 0.0% ] 0.159 ms gnome-power-man - 4918 : 16 [ 0.0% ] 0.065 ms gvfs-afc-volume - 4992 : 77 [ 0.0% ] 0.136 ms gnome-screensav - 5114 : 24 [ 0.0% ] 0.128 ms xchat - 8082 : 466 [ 0.0% ] 2.019 ms synergyc - 8369 : 941 [ 0.0% ] 3.291 ms synergyc - 8371 : 85 [ 0.0% ] 1.817 ms jbd2/dm-4-8 - 9352 : 4 [ 0.0% ] 0.109 ms rpcbind - 9786 : 3 [ 0.0% ] 0.017 ms rtkit-daemon - 12802 : 10 [ 0.0% ] 0.038 ms rtkit-daemon - 12803 : 8 [ 0.0% ] 0.000 ms udisks-daemon - 13020 : 27 [ 0.0% ] 0.240 ms kworker/7:0 - 14651 : 669 [ 0.0% ] 2.616 ms kworker/5:1 - 16220 : 2 [ 0.0% ] 0.069 ms kworker/4:0 - 19776 : 13 [ 0.0% ] 0.176 ms openvpn - 20131 : 133 [ 0.0% ] 0.762 ms plugin-containe - 20508 : 60658 [ 1.7% ] 131.153 ms npviewer.bin - 20520 : 72208 [ 2.0% ] 138.945 ms npviewer.bin - 20542 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 20543 : 30 [ 0.0% ] 0.074 ms npviewer.bin - 20547 : 35 [ 0.0% ] 0.092 ms npviewer.bin - 20552 : 35 [ 0.0% ] 0.093 ms sshd - 20645 : 32 [ 0.0% ] 0.071 ms npviewer.bin - 21053 : 35 [ 0.0% ] 0.074 ms npviewer.bin - 21054 : 35 [ 0.0% ] 0.097 ms kworker/0:2 - 21169 : 149 [ 0.0% ] 1.143 ms kworker/3:0 - 22171 : 113 [ 0.0% ] 96.892 ms flush-253:4 - 22410 : 1 [ 0.0% ] 0.028 ms kworker/6:0 - 24581 : 25 [ 0.0% ] 0.275 ms kworker/1:0 - 25572 : 4 [ 0.0% ] 0.103 ms kworker/2:1 - 26299 : 138 [ 0.0% ] 1.440 ms kworker/0:0 - 26325 : 1 [ 0.0% ] 0.003 ms perf - 26330 : 3506967 [ 96.1% ] 6648.310 ms [root@sandy ~]# Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-17 17:13:12 -03:00
perf trace: New tool Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-26 20:05:56 -03:00