kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-13 07:31:07 +00:00
Code Issues Releases Packages Activity
linux/tools/perf/tests/shell/attr/base-record

41 lines
572 B
Raw Normal View History

perf tests: Add attr record basic test Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-30 23:01:45 +01:00
perf tests: Update attr test with PERF_FLAG_FD_CLOEXEC flag We not support PERF_FLAG_FD_CLOEXEC flag, updating attr tests accordingly. Cc: Arnaldo Carvalho de Melo <acme@kernel.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@kernel.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-2mgzn5p9u74drmdmxo5unar0@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-07-14 08:50:03 +02:00
perf tests: Make attr script test event cpu Make attr script to check for 'cpu' when testing event properties. This will allow us to check the '-C X' option for both record and stat commands. 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: Oleg Nesterov <oleg@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1361785972-7431-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-02-25 10:52:50 +01:00
perf tests: Add attr record basic test Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-30 23:01:45 +01:00
perf test: Fix wrong size expectation for 'Setup struct perf_event_attr' The test case "perf test 'Setup struct perf_event_attr'" is failing. On s390 this output is observed: # ./perf test -Fvvvv 17 17: Setup struct perf_event_attr : --- start --- running './tests/attr/test-stat-C0' Using CPUID IBM,8561,703,T01,3.6,002f ..... Event event:base-stat fd = 1 group_fd = -1 flags = 0|8 cpu = * type = 0 size = 128 <<<--- wrong, specified in file base-stat config = 0 sample_period = 0 sample_type = 65536 ... 'PERF_TEST_ATTR=/tmp/tmpgw574wvg ./perf stat -o \ /tmp/tmpgw574wvg/perf.data -e cycles -C 0 kill >/dev/null \ 2>&1 ret '1', expected '1' loading result events Event event-0-0-4 fd = 4 group_fd = -1 cpu = 0 pid = -1 flags = 8 type = 0 size = 136 <<<--- actual size used in system call ..... compare matching [event-0-0-4] to [event:base-stat] [cpu] 0 * [flags] 8 0|8 [type] 0 0 [size] 136 128 ->FAIL match: [event-0-0-4] matches [] expected size=136, got 128 FAILED './tests/attr/test-stat-C0' - match failure This mismatch is caused by commit 09519ec3b19e ("perf: Add perf_event_attr::config3") which enlarges the structure perf_event_attr by 8 bytes. Fix this by adjusting the expected value of size. Output after: # ./perf test -Fvvvv 17 17: Setup struct perf_event_attr : --- start --- running './tests/attr/test-stat-C0' Using CPUID IBM,8561,703,T01,3.6,002f ... matched compare matching [event-0-0-4] to [event:base-stat] [cpu] 0 * [flags] 8 0|8 [type] 0 0 [size] 136 136 .... ->OK match: [event-0-0-4] matches ['event:base-stat'] matched Fixes: 09519ec3b19e4144 ("perf: Add perf_event_attr::config3") Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Rob Herring <robh@kernel.org> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20230322094731.1768281-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-03-22 10:47:31 +01:00
perf test: test case 'Setup struct perf_event_attr' fails on s390 on z/vm perf test 17 'Setup struct perf_event_attr' fails on s390 z/VM guest, using linux-next kernel. Root cause is the fall-back from hardware counter cycles perf_event_attr: type 0 (PERF_TYPE_HARDWARE) size 136 config 0 (PERF_COUNT_HW_CPU_CYCLES) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|ADDR|PERIOD|DATA_SRC read_format ID|LOST which returns -ENOENT on s390 z/VM guest. This causes the code to fall back to software counter task-clock, as can be seen in the debug output: ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 0x1 (PERF_COUNT_SW_TASK_CLOCK) <-here { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|ADDR|PERIOD|DATA_SRC read_format ID|LOST This succeeds on s390 z/VM guest. This successful installation of the counter task-clock is not listed in the expected results and the test case fails. This is caused by commit eb2eac0c7b618033 ("perf evsel: Fallback to "task-clock" when not system wide") which introduced fall back from event 'cycles' to event 'task-clock'. To fix this on s390 allow event number 0 (cycles) and event number 1 (task-clock) as expected result. Output before: # ./perf test -Fv 17 17: Setup struct perf_event_attr : --- start --- running './tests/attr/test-stat-group1' unsupp './tests/attr/test-stat-group1' running './tests/attr/test-record-graph-default' test limitation '!aarch64' excluded architecture list ['aarch64'] expected config=0, got 1 FAILED './tests/attr/test-record-graph-default' - match failure ---- end ---- Setup struct perf_event_attr: FAILED! # Output after: # ./perf test -F 17 17: Setup struct perf_event_attr : Ok # Fixes: eb2eac0c7b618033 ("perf evsel: Fallback to "task-clock" when not system wide") Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: https://lore.kernel.org/r/20231219143235.1075522-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-12-19 15:32:35 +01:00
perf tests attr: Fix sample_period setup The final period can differ from what user specifies on command line due to the perf_event_max_sample_rate sysctl setup. Thus we can't predixt the sample_period value any more. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20170703145030.12903-12-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-03 16:50:26 +02:00
perf tests: Add attr record basic test Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-30 23:01:45 +01:00
perf test: Fix attr tests for PERF_FORMAT_LOST Since PERF_FORMAT_LOST was added, the default read format has that bit set, so add it to the tests. Keep the old value as well so that the test still passes on older kernels. This fixes the following failure: expected read_format=0|4, got 20 FAILED './tests/attr/test-record-C0' - match failure Fixes: 85b425f31c8866e0 ("perf record: Set PERF_FORMAT_LOST by default") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20221012094633.21669-2-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-12 10:46:32 +01:00
perf tests: Add attr record basic test Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-30 23:01:45 +01:00
perf tests attr: Add 1s for exclude_kernel and task base bits There's an event open fallback which set exclude_kernel=1 in case use does not have enough privileges. Adding both 0|1 for this attribute, because we don't know what value it is. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20170703145030.12903-7-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-03 16:50:21 +02:00
perf test: Test 17 fails with make LIBPFM4=1 on s390 z/VM This test case fails on s390 virtual machine z/VM which has no PMU support when the perf tool is built with LIBPFM4=1. Using make LIBPFM4=1 builds the perf tool with support for libpfm event notation. The command line flag --pfm-events is valid: # ./perf record --pfm-events cycles -- true [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.001 MB perf.data (2 samples) ] # However the command 'perf test -Fv 17' fails on s390 z/VM virtual machine with LIBPFM4=1: # perf test -Fv 17 17: Setup struct perf_event_attr : --- start --- ..... running './tests/attr/test-record-group2' unsupp './tests/attr/test-record-group2' running './tests/attr/test-record-pfm-period' expected exclude_hv=0, got 1 FAILED './tests/attr/test-record-pfm-period' - match failure ---- end ---- Setup struct perf_event_attr: FAILED! When --pfm-event system is not supported, the test returns unsupported and continues. Here is an example using a virtual machine on x86 and Fedora 34: [root@f33 perf]# perf test -Fv 17 17: Setup struct perf_event_attr : --- start --- ..... running './tests/attr/test-record-group2' unsupp './tests/attr/test-record-group2' running './tests/attr/test-record-pfm-period' unsupp './tests/attr/test-record-pfm-period' .... The issue is file ./tests/attr/test-record-pfm-period which requires perf event attribute member exclude_hv to be zero. This is not the case on s390 where the value of exclude_hv is one when executing on a z/VM virtual machine without PMU hardware support. Fix this by allowing value exlucde_hv to be zero or one. Output before: # /usr/bin/python ./tests/attr.py -d ./tests/attr/ -t \ test-record-pfm-period -p ./perf -vvv 2>&1| fgrep match matching [event:base-record] match: [event:base-record] matches [] FAILED './tests/attr//test-record-pfm-period' - match failure # Output after: # /usr/bin/python ./tests/attr.py -d ./tests/attr/ -t \ test-record-pfm-period -p ./perf -vvv 2>&1| fgrep match matching [event:base-record] match: [event:base-record] matches ['event-1-0-6', 'event-1-0-5'] matched Background: Using libpfm library ends up in this function call sequence pfm_get_perf_event_encoding() +-- pfm_get_os_event_encoding() +-- pfmlib_perf_event_encode() is called when no hardware specific PMU unit can be detected as in the s390 z/VM virtual machine case. This uses the "perf_events generic PMU" data structure which sets exclude_hv to 1 per default. Using this PMU that test case always fails. That is the reason why exclude_hv attribute setting varies. Version 2: As suggested by Ian Rogers make perf_event_attribute member exclude_hv more robust and accept value 0 or 1 to handle more test cases which might fail on s390 virtual machine z/VM. Suggested-by: Ian Rogers <irogers@google.com> Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Ian Rogers <irogers@google.com> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: http://lore.kernel.org/lkml/20210528091050.245838-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-05-28 11:10:50 +02:00
perf tests: Add attr record basic test Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-30 23:01:45 +01:00
perf tests attr: Fix task term values The perf_event_attr::task is 1 by default for first (tracking) event in the session. Setting task=1 as default and adding task=0 for cases that need it. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20170703145030.12903-16-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-03 16:50:30 +02:00
perf tests: Fix attr watermark field name typo Currently the 'watermark' field is coded as 'watermask'. As the type is global through the framework and tests, the typo spawned no error. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1352130579-13451-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-11-05 16:49:38 +01:00
perf tests attr: Fix precise_ip setup We have a test to detect to highest precise possible, so test can't just predict precise_ip value. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20170703145030.12903-13-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-03 16:50:27 +02:00
perf tests: Add attr record basic test Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-30 23:01:45 +01:00
perf tests: Fix exclude_guest|exclude_host checking for attr tests We have a one of the event open fallback case in __perf_evsel__open where we zero exclude_guest|exclude_host fields. This means there's no way for attr tests to find out what's the right value for those fields, so we need to check for both 0 and 1. Luckily we still have other event parsing tests for those fields. Signed-off-by: Jiri Olsa <jolsa@redhat.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: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1369394201-20044-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-05-24 13:16:38 +02:00
perf tests: Add attr record basic test Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-30 23:01:45 +01:00