2013-10-02 11:49:08 +02:00
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2016-03-18 13:57:20 -03:00
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2013-10-02 11:49:08 +02:00
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2014-02-19 16:52:54 +01:00
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2013-10-02 11:49:08 +02:00
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2014-02-19 16:52:57 +01:00
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2015-11-30 10:02:21 +01:00
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2014-02-19 16:52:57 +01:00
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2014-10-23 18:16:03 -03:00
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perf tools: Add gzip decompression support for kernel module
Now my Archlinux box shows module symbols correctly.
Before:
$ perf report --stdio
Failed to open /tmp/perf-3477.map, continuing without symbols
no symbols found in /usr/bin/date, maybe install a debug package?
No kallsyms or vmlinux with build-id 7b4ea0a49ae2111925857099aaf05c3246ff33e0 was found
[drm] with build id 7b4ea0a49ae2111925857099aaf05c3246ff33e0 not found, continuing without symbols
No kallsyms or vmlinux with build-id edd931629094b660ca9dec09a1b635c8d87aa2ee was found
[jbd2] with build id edd931629094b660ca9dec09a1b635c8d87aa2ee not found, continuing without symbols
No kallsyms or vmlinux with build-id a7b1eada671c34933e5610bb920b2ca4945a82c3 was found
[ext4] with build id a7b1eada671c34933e5610bb920b2ca4945a82c3 not found, continuing without symbols
No kallsyms or vmlinux with build-id d69511fa3e5840e770336ef45b06c83fef8d74e3 was found
[scsi_mod] with build id d69511fa3e5840e770336ef45b06c83fef8d74e3 not found, continuing without symbols
No kallsyms or vmlinux with build-id af0430af13461af058770ee9b87afc07922c2e77 was found
[libata] with build id af0430af13461af058770ee9b87afc07922c2e77 not found, continuing without symbols
No kallsyms or vmlinux with build-id aaeedff8160ce631a5f0333591c6ff291201d29f was found
[libahci] with build id aaeedff8160ce631a5f0333591c6ff291201d29f not found, continuing without symbols
No kallsyms or vmlinux with build-id c57907712becaf662dc4981824bb372c0441d605 was found
[mac80211] with build id c57907712becaf662dc4981824bb372c0441d605 not found, continuing without symbols
No kallsyms or vmlinux with build-id e0589077cc0ec8c3e4c40eb9f2d9e69d236bee8f was found
[iwldvm] with build id e0589077cc0ec8c3e4c40eb9f2d9e69d236bee8f not found, continuing without symbols
No kallsyms or vmlinux with build-id 2d86086bf136bf374a2f029cf85a48194f9b950b was found
[cfg80211] with build id 2d86086bf136bf374a2f029cf85a48194f9b950b not found, continuing without symbols
No kallsyms or vmlinux with build-id 4493c48599bdb3d91d0f8db5150e0be33fdd9221 was found
[iwlwifi] with build id 4493c48599bdb3d91d0f8db5150e0be33fdd9221 not found, continuing without symbols
...
#
# Overhead Command Shared Object Symbol
# ........ ............... ....................... ........................................................
#
0.03% swapper [ext4] [k] 0x000000000000fe2e
0.03% swapper [kernel.kallsyms] [k] account_entity_enqueue
0.03% swapper [ext4] [k] 0x000000000000fc2b
0.03% irq/50-iwlwifi [iwlwifi] [k] 0x000000000000200b
0.03% swapper [kernel.kallsyms] [k] ktime_add_safe
0.03% swapper [kernel.kallsyms] [k] elv_completed_request
0.03% swapper [libata] [k] 0x0000000000003997
0.03% swapper [libahci] [k] 0x0000000000001f25
0.03% swapper [kernel.kallsyms] [k] rb_next
0.03% swapper [kernel.kallsyms] [k] blk_finish_request
0.03% swapper [ext4] [k] 0x0000000000010248
0.00% perf [kernel.kallsyms] [k] native_write_msr_safe
After:
$ perf report --stdio
Failed to open /tmp/perf-3477.map, continuing without symbols
no symbols found in /usr/bin/tr, maybe install a debug package?
...
#
# Overhead Command Shared Object Symbol
# ........ ............... ........................... ......................................................
#
0.04% kworker/u16:3 [ext4] [k] ext4_read_block_bitmap
0.03% kworker/u16:0 [mac80211] [k] ieee80211_sta_reset_beacon_monitor
0.02% irq/50-iwlwifi [mac80211] [k] ieee80211_get_bssid
0.02% firefox [e1000e] [k] __ew32_prepare
0.02% swapper [libahci] [k] ahci_handle_port_interrupt
0.02% emacs libglib-2.0.so.0.4000.0 [.] g_mutex_unlock
0.02% swapper [e1000e] [k] e1000_clean_tx_irq
0.02% dwm [kernel.kallsyms] [k] __schedule
0.02% gnome-terminal- [vdso] [.] __vdso_clock_gettime
0.02% swapper [e1000e] [k] e1000_alloc_rx_buffers
0.02% irq/50-iwlwifi [mac80211] [k] ieee80211_rx
0.01% firefox [vdso] [.] __vdso_gettimeofday
0.01% irq/50-iwlwifi [iwlwifi] [k] iwl_pcie_rxq_restock.part.13
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/87h9yexshi.fsf@sejong.aot.lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-31 16:51:38 +09:00
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2015-02-20 23:16:58 +01:00
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2015-03-28 11:30:30 +01:00
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2015-02-20 23:16:58 +01:00
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2015-01-29 13:29:39 +01:00
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2015-04-30 17:37:27 +03:00
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2015-10-14 12:41:12 +00:00
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2016-01-15 04:00:18 +00:00
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2016-07-12 19:05:56 +09:00
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2016-01-15 04:00:18 +00:00
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2014-02-19 16:52:57 +01:00
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2015-08-13 10:14:55 +03:00
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2013-10-02 11:49:08 +02:00
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2014-12-29 17:42:46 +01:00
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2013-10-02 11:49:08 +02:00
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2015-01-11 23:59:55 +01:00
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2015-01-10 21:43:32 +01:00
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2013-10-02 11:49:08 +02:00
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2015-01-11 23:59:55 +01:00
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2013-10-02 11:49:08 +02:00
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2015-07-14 12:05:20 +03:00
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2016-02-09 13:33:38 +00:00
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2014-01-15 10:44:08 +00:00
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2013-10-02 11:49:08 +02:00
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perf trace: Add 'trace' alias to 'perf trace'
Make 'perf trace' more accessible by aliasing it to just 'trace':
[root@zoo linux]# trace --duration 15 -a -e futex sleep 1
110.092 (16.188 ms): libvirtd/1166 futex(uaddr: 0x185b344, op: WAIT|PRIV, val: 174293 ) = 0
110.101 (15.903 ms): libvirtd/1171 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139265 ) = 0
111.594 (15.776 ms): libvirtd/1165 futex(uaddr: 0x185b344, op: WAIT|PRIV, val: 174295 ) = 0
111.610 (15.969 ms): libvirtd/1169 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139267 ) = 0
113.556 (16.216 ms): libvirtd/1168 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139269 ) = 0
291.265 (199.508 ms): chromium-brows/15830 futex(uaddr: 0x7fff2986bcb4, op: WAIT_BITSET|PRIV|CLKRT, val: 1, utime: 0x7fff2986bab0, val3: 4294967295) = -1 ETIMEDOUT Connection timed out
360.354 (69.053 ms): chromium-brows/15830 futex(uaddr: 0x7fff2986bcb4, op: WAIT_BITSET|PRIV|CLKRT, val: 1, utime: 0x7fff2986bab0, val3: 4294967295) = -1 ETIMEDOUT Connection timed out
[root@zoo linux]#
I.e. looking for futex calls that take at least 15ms, system wide, during a one
second window. Now to get callchains into 'trace' to figure out what are those
locks :-)
Requested-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: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ch4smqz8b5fmgrte7c5e4fuw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-24 11:56:36 -03:00
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2013-10-02 11:49:08 +02:00
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2015-08-13 10:14:55 +03:00
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2013-10-02 11:49:08 +02:00
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2015-12-15 09:39:39 -06:00
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2013-10-02 11:49:08 +02:00
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2015-12-15 09:39:39 -06:00
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2013-10-02 11:49:08 +02:00
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2016-08-01 20:02:33 +02:00
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2013-10-02 11:49:08 +02:00
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2016-01-25 09:55:51 +00:00
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2013-10-02 11:49:08 +02:00
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2016-01-25 09:55:51 +00:00
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2016-08-01 20:02:33 +02:00
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2013-10-02 11:49:08 +02:00
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perf tools: Build syscall table .c header from kernel's syscall_64.tbl
We used libaudit to map ids to syscall names and vice-versa, but that
imposes a delay in supporting new syscalls, having to wait for libaudit
to get those new syscalls on its tables.
To remove that delay, for x86_64 initially, grab a copy of
arch/x86/entry/syscalls/syscall_64.tbl and use it to generate those
tables.
Syscalls currently not available in audit-libs:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
Error: Invalid syscall copy_file_range, membarrier, mlock2, pread64, pwrite64, timerfd_create, userfaultfd
Hint: try 'perf list syscalls:sys_enter_*'
Hint: and: 'man syscalls'
#
With this patch:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
8505.733 ( 0.010 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 36
8506.688 ( 0.005 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 40
30023.097 ( 0.025 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63ae382000, count: 4096, pos: 529592320) = 4096
31268.712 ( 0.028 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afd8b000, count: 4096, pos: 2314133504) = 4096
31268.854 ( 0.016 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afda2000, count: 4096, pos: 2314137600) = 4096
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-51xfjbxevdsucmnbc4ka5r88@git.kernel.org
[ Added make dep for 'prepare' in 'LIBPERF_IN', fix by Wang Nan to fix parallell build ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-04 19:05:36 -03:00
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2016-01-15 04:00:18 +00:00
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2013-12-03 14:09:21 +01:00
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2013-10-02 11:49:08 +02:00
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2014-07-31 09:01:12 +03:00
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2013-10-02 11:49:08 +02:00
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2015-10-14 12:41:12 +00:00
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2015-12-15 09:39:39 -06:00
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2013-10-02 11:49:08 +02:00
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2015-12-13 22:18:06 -06:00
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2013-10-02 11:49:08 +02:00
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2015-12-13 22:18:06 -06:00
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2013-10-02 11:49:08 +02:00
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2015-12-13 22:18:06 -06:00
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2015-10-14 12:41:12 +00:00
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2015-12-15 09:39:39 -06:00
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2013-10-02 11:49:08 +02:00
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2015-05-28 13:28:54 +00:00
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2015-06-17 14:46:29 +00:00
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2015-05-28 13:28:54 +00:00
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2015-12-13 22:18:06 -06:00
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2015-01-10 20:53:13 +01:00
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2013-10-02 11:49:08 +02:00
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2015-10-14 12:41:12 +00:00
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2015-12-15 09:39:39 -06:00
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2013-10-02 11:49:08 +02:00
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2013-10-09 11:49:26 +02:00
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2013-10-02 11:49:08 +02:00
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2015-01-10 20:53:13 +01:00
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2013-10-02 11:49:08 +02:00
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2015-06-12 03:17:11 +00:00
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2016-06-22 06:57:05 +00:00
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2015-06-17 14:46:29 +00:00
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2013-10-02 11:49:08 +02:00
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2014-10-23 18:16:03 -03:00
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2013-10-02 11:49:08 +02:00
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2015-12-15 09:39:39 -06:00
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2015-10-14 12:41:12 +00:00
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2013-10-02 11:49:08 +02:00
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2013-09-13 15:27:43 +09:00
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2014-12-30 00:34:23 +01:00
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2013-09-13 15:27:43 +09:00
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2013-10-09 11:49:29 +02:00
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2013-10-02 11:49:08 +02:00
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2015-01-11 23:59:55 +01:00
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2013-10-02 11:49:08 +02:00
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2014-12-29 13:52:36 +01:00
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2015-08-13 10:14:55 +03:00
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2015-09-23 12:33:56 +02:00
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2014-12-29 13:52:36 +01:00
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2015-09-23 12:34:01 +02:00
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2016-07-11 10:28:48 -03:00
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2016-07-18 18:39:36 -03:00
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2016-07-11 23:37:18 -03:00
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2016-07-11 12:36:41 -03:00
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2016-07-11 21:16:52 -03:00
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2016-07-12 10:57:25 -03:00
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2016-07-18 18:13:22 -03:00
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2015-01-11 23:59:55 +01:00
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2014-12-29 13:52:36 +01:00
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2015-05-28 13:28:54 +00:00
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2015-06-17 14:46:29 +00:00
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2013-10-02 11:49:08 +02:00
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2015-09-23 12:34:02 +02:00
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2015-01-11 23:59:55 +01:00
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2013-09-13 15:27:43 +09:00
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2014-12-30 00:34:23 +01:00
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2014-04-27 11:12:21 +02:00
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2013-09-13 15:27:43 +09:00
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2013-10-02 11:49:08 +02:00
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2014-12-30 17:09:15 +01:00
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2013-10-02 11:49:08 +02:00
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2013-10-04 12:14:59 +02:00
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2013-10-10 07:42:56 +02:00
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2013-10-04 12:14:59 +02:00
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2013-10-10 07:42:56 +02:00
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2013-10-04 12:14:59 +02:00
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2013-10-10 07:42:56 +02:00
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2013-10-04 12:14:59 +02:00
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2013-10-02 11:49:08 +02:00
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2014-12-30 18:44:38 +01:00
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|
perf tools: Build syscall table .c header from kernel's syscall_64.tbl
We used libaudit to map ids to syscall names and vice-versa, but that
imposes a delay in supporting new syscalls, having to wait for libaudit
to get those new syscalls on its tables.
To remove that delay, for x86_64 initially, grab a copy of
arch/x86/entry/syscalls/syscall_64.tbl and use it to generate those
tables.
Syscalls currently not available in audit-libs:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
Error: Invalid syscall copy_file_range, membarrier, mlock2, pread64, pwrite64, timerfd_create, userfaultfd
Hint: try 'perf list syscalls:sys_enter_*'
Hint: and: 'man syscalls'
#
With this patch:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
8505.733 ( 0.010 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 36
8506.688 ( 0.005 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 40
30023.097 ( 0.025 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63ae382000, count: 4096, pos: 529592320) = 4096
31268.712 ( 0.028 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afd8b000, count: 4096, pos: 2314133504) = 4096
31268.854 ( 0.016 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afda2000, count: 4096, pos: 2314137600) = 4096
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-51xfjbxevdsucmnbc4ka5r88@git.kernel.org
[ Added make dep for 'prepare' in 'LIBPERF_IN', fix by Wang Nan to fix parallell build ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-04 19:05:36 -03:00
|
|
|
|
2014-12-30 18:44:38 +01:00
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2015-09-23 12:34:01 +02:00
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2015-01-11 23:59:55 +01:00
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2014-12-30 18:44:38 +01:00
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2015-09-23 12:34:01 +02:00
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2015-01-11 23:59:55 +01:00
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2014-12-30 18:44:38 +01:00
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2015-09-23 12:34:01 +02:00
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2015-01-11 23:59:55 +01:00
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2014-12-30 18:44:38 +01:00
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2015-09-23 12:34:01 +02:00
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2015-01-11 23:59:55 +01:00
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2014-12-30 18:44:38 +01:00
|
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2015-09-23 12:34:01 +02:00
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2015-01-11 23:59:55 +01:00
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2014-12-30 18:44:38 +01:00
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2015-09-23 12:34:01 +02:00
|
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2015-01-11 23:59:55 +01:00
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2014-12-30 18:44:38 +01:00
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2015-09-23 12:34:01 +02:00
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2015-01-11 23:59:55 +01:00
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2013-10-02 11:49:08 +02:00
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2014-10-23 18:16:03 -03:00
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2014-12-30 16:51:35 +01:00
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2013-10-02 11:49:08 +02:00
|
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2014-12-29 17:42:46 +01:00
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|
perf tools: Build syscall table .c header from kernel's syscall_64.tbl
We used libaudit to map ids to syscall names and vice-versa, but that
imposes a delay in supporting new syscalls, having to wait for libaudit
to get those new syscalls on its tables.
To remove that delay, for x86_64 initially, grab a copy of
arch/x86/entry/syscalls/syscall_64.tbl and use it to generate those
tables.
Syscalls currently not available in audit-libs:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
Error: Invalid syscall copy_file_range, membarrier, mlock2, pread64, pwrite64, timerfd_create, userfaultfd
Hint: try 'perf list syscalls:sys_enter_*'
Hint: and: 'man syscalls'
#
With this patch:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
8505.733 ( 0.010 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 36
8506.688 ( 0.005 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 40
30023.097 ( 0.025 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63ae382000, count: 4096, pos: 529592320) = 4096
31268.712 ( 0.028 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afd8b000, count: 4096, pos: 2314133504) = 4096
31268.854 ( 0.016 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afda2000, count: 4096, pos: 2314137600) = 4096
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-51xfjbxevdsucmnbc4ka5r88@git.kernel.org
[ Added make dep for 'prepare' in 'LIBPERF_IN', fix by Wang Nan to fix parallell build ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-04 19:05:36 -03:00
|
|
|
|
2015-01-11 23:59:55 +01:00
|
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2014-12-29 17:42:46 +01:00
|
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2014-12-30 16:51:35 +01:00
|
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2014-12-29 17:42:46 +01:00
|
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2013-10-02 11:49:08 +02:00
|
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2013-12-03 14:09:21 +01:00
|
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2015-09-23 12:34:02 +02:00
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2015-05-28 13:28:54 +00:00
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2015-09-23 12:34:02 +02:00
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2015-05-28 13:28:54 +00:00
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2013-10-02 11:49:08 +02:00
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2013-10-09 11:49:26 +02:00
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2015-01-11 23:59:55 +01:00
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2013-10-02 11:49:08 +02:00
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2015-11-26 14:54:04 +01:00
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2015-01-11 23:59:55 +01:00
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2013-12-03 14:09:21 +01:00
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2015-09-23 12:34:02 +02:00
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2015-01-11 23:59:55 +01:00
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2013-10-02 11:49:08 +02:00
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2015-01-10 20:53:13 +01:00
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2015-01-11 23:59:55 +01:00
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2013-10-02 11:49:08 +02:00
|
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2015-10-28 21:44:50 +01:00
|
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2016-01-15 04:00:18 +00:00
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2015-10-14 12:41:12 +00:00
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2015-12-15 09:39:39 -06:00
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2013-10-02 11:49:08 +02:00
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2014-06-03 00:44:34 +08:00
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2013-10-02 11:49:08 +02:00
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2016-01-07 10:14:06 +01:00
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2014-05-28 10:19:18 +02:00
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2013-10-02 11:49:08 +02:00
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2014-06-04 14:43:58 +02:00
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2014-05-28 10:19:18 +02:00
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2013-10-02 11:49:08 +02:00
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2014-06-04 14:43:58 +02:00
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2014-05-28 10:19:18 +02:00
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2013-10-02 11:49:08 +02:00
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2014-06-04 14:43:58 +02:00
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2014-05-28 10:19:18 +02:00
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2013-10-02 11:49:08 +02:00
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2013-09-13 15:27:43 +09:00
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2015-05-18 11:37:27 -07:00
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2013-10-09 11:49:29 +02:00
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2014-10-23 18:16:03 -03:00
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2013-10-09 11:49:29 +02:00
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2014-07-31 09:01:12 +03:00
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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
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2013-10-02 11:49:08 +02:00
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2013-10-09 11:49:29 +02:00
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2013-10-02 11:49:08 +02:00
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2013-10-09 11:49:29 +02:00
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2013-10-02 11:49:08 +02:00
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2013-11-17 21:43:27 +05:30
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2013-10-09 11:49:29 +02:00
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2013-11-17 21:43:27 +05:30
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2016-01-07 20:41:53 +09:00
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2015-05-18 11:37:27 -07:00
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2013-10-09 11:49:29 +02:00
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2013-10-02 11:49:08 +02:00
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2015-05-18 11:37:27 -07:00
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2013-12-03 14:09:21 +01:00
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2013-10-02 11:49:08 +02:00
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2016-08-01 20:02:33 +02:00
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2013-10-02 11:49:08 +02:00
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2013-10-09 11:49:26 +02:00
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2015-12-13 22:18:05 -06:00
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2013-10-02 11:49:08 +02:00
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perf tools: Build syscall table .c header from kernel's syscall_64.tbl
We used libaudit to map ids to syscall names and vice-versa, but that
imposes a delay in supporting new syscalls, having to wait for libaudit
to get those new syscalls on its tables.
To remove that delay, for x86_64 initially, grab a copy of
arch/x86/entry/syscalls/syscall_64.tbl and use it to generate those
tables.
Syscalls currently not available in audit-libs:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
Error: Invalid syscall copy_file_range, membarrier, mlock2, pread64, pwrite64, timerfd_create, userfaultfd
Hint: try 'perf list syscalls:sys_enter_*'
Hint: and: 'man syscalls'
#
With this patch:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
8505.733 ( 0.010 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 36
8506.688 ( 0.005 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 40
30023.097 ( 0.025 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63ae382000, count: 4096, pos: 529592320) = 4096
31268.712 ( 0.028 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afd8b000, count: 4096, pos: 2314133504) = 4096
31268.854 ( 0.016 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afda2000, count: 4096, pos: 2314137600) = 4096
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-51xfjbxevdsucmnbc4ka5r88@git.kernel.org
[ Added make dep for 'prepare' in 'LIBPERF_IN', fix by Wang Nan to fix parallell build ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-04 19:05:36 -03:00
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2014-12-30 16:51:35 +01:00
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2015-12-13 22:18:05 -06:00
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2015-07-01 14:54:42 +03:00
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2014-10-23 18:16:03 -03:00
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2015-08-13 10:14:55 +03:00
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2015-12-13 22:18:05 -06:00
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perf test: Add libbpf relocation checker
There's a bug in LLVM that it can generate unneeded relocation
information. See [1] and [2]. Libbpf should check the target section of
a relocation symbol.
This patch adds a testcase which references a global variable (BPF
doesn't support global variables). Before fixing libbpf, the new test
case can be loaded into kernel, the global variable acts like the first
map. It is incorrect.
Result:
# ~/perf test BPF
37: Test BPF filter :
37.1: Test basic BPF filtering : Ok
37.2: Test BPF prologue generation : Ok
37.3: Test BPF relocation checker : FAILED!
# ~/perf test -v BPF
...
libbpf: loading object '[bpf_relocation_test]' from buffer
libbpf: section .strtab, size 126, link 0, flags 0, type=3
libbpf: section .text, size 0, link 0, flags 6, type=1
libbpf: section .data, size 0, link 0, flags 3, type=1
libbpf: section .bss, size 0, link 0, flags 3, type=8
libbpf: section func=sys_write, size 104, link 0, flags 6, type=1
libbpf: found program func=sys_write
libbpf: section .relfunc=sys_write, size 16, link 10, flags 0, type=9
libbpf: section maps, size 16, link 0, flags 3, type=1
libbpf: maps in [bpf_relocation_test]: 16 bytes
libbpf: section license, size 4, link 0, flags 3, type=1
libbpf: license of [bpf_relocation_test] is GPL
libbpf: section version, size 4, link 0, flags 3, type=1
libbpf: kernel version of [bpf_relocation_test] is 40400
libbpf: section .symtab, size 144, link 1, flags 0, type=2
libbpf: map 0 is "my_table"
libbpf: collecting relocating info for: 'func=sys_write'
libbpf: relocation: insn_idx=7
Success unexpectedly: libbpf error when dealing with relocation
test child finished with -1
---- end ----
Test BPF filter subtest 2: FAILED!
[1] https://llvm.org/bugs/show_bug.cgi?id=26243
[2] https://patchwork.ozlabs.org/patch/571385/
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1453715801-7732-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-25 09:55:48 +00:00
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2013-12-09 17:14:23 +01:00
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2013-10-02 11:49:08 +02:00
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2016-01-15 04:00:17 +00:00
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2013-10-02 11:49:08 +02:00
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2014-12-29 13:52:36 +01:00
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2013-09-13 15:27:43 +09:00
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2013-10-02 11:49:08 +02:00
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2015-09-23 12:34:01 +02:00
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perf tools: Build syscall table .c header from kernel's syscall_64.tbl
We used libaudit to map ids to syscall names and vice-versa, but that
imposes a delay in supporting new syscalls, having to wait for libaudit
to get those new syscalls on its tables.
To remove that delay, for x86_64 initially, grab a copy of
arch/x86/entry/syscalls/syscall_64.tbl and use it to generate those
tables.
Syscalls currently not available in audit-libs:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
Error: Invalid syscall copy_file_range, membarrier, mlock2, pread64, pwrite64, timerfd_create, userfaultfd
Hint: try 'perf list syscalls:sys_enter_*'
Hint: and: 'man syscalls'
#
With this patch:
# trace -e copy_file_range,membarrier,mlock2,pread64,pwrite64,timerfd_create,userfaultfd
8505.733 ( 0.010 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 36
8506.688 ( 0.005 ms): gnome-shell/2519 timerfd_create(flags: 524288) = 40
30023.097 ( 0.025 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63ae382000, count: 4096, pos: 529592320) = 4096
31268.712 ( 0.028 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afd8b000, count: 4096, pos: 2314133504) = 4096
31268.854 ( 0.016 ms): qemu-system-x8/24629 pwrite64(fd: 18, buf: 0x7f63afda2000, count: 4096, pos: 2314137600) = 4096
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-51xfjbxevdsucmnbc4ka5r88@git.kernel.org
[ Added make dep for 'prepare' in 'LIBPERF_IN', fix by Wang Nan to fix parallell build ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-04 19:05:36 -03:00
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2013-10-02 11:49:08 +02:00
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