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author | German Gomez <german.gomez@arm.com> | 2022-02-28 19:56:54 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-06-03 22:18:35 +0300 |
commit | 4f52ca135861e92a271262eefc0f040513d266d4 (patch) | |
tree | 7791f223f7903d735c746ed11d56db5df6bd8549 /tools/perf/util | |
parent | 8db43088ef16007f5e5b285d8c78c225a88083d6 (diff) | |
download | linux-4f52ca135861e92a271262eefc0f040513d266d4.tar.xz |
perf test arm-spe: Check if perf-record hangs when recording workload with forks
Add shell test to check if perf-record hangs when recording an arm_spe
event with forks.
The test FAILS if the Kernel is not patched with Commit 961c391217 ("perf:
Always wake the parent event").
Unpatched Kernel:
$ perf test -v 90
90: Check Arm SPE doesn't hang when there are forks
--- start ---
test child forked, pid 14232
Recording workload with fork
Log lines = 90 /tmp/__perf_test.stderr.0Nu0U
Log lines after 1 second = 90 /tmp/__perf_test.stderr.0Nu0U
SPE hang test: FAIL
test child finished with -1
---- end ----
Check Arm SPE trace data in workload with forks: FAILED!
Patched Kernel:
$ perf test -v 90
90: Check Arm SPE doesn't hang when there are forks
--- start ---
test child forked, pid 2930
Compiling test program...
Recording workload...
Log lines = 478 /tmp/__perf_test.log.026AI
Log lines after 1 second = 557 /tmp/__perf_test.log.026AI
SPE hang test: PASS
Cleaning up files...
test child finished with 0
---- end ----
Check Arm SPE trace data in workload with forks: Ok
Reviewed-by: James Clark <james.clark@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220228165655.3920-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
0 files changed, 0 insertions, 0 deletions