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| author | Namhyung Kim <namhyung@kernel.org> | 2023-03-31 13:29:44 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-04 13:23:58 -0300 |
| commit | f6a7bbbfe61cc34c4e443141d3eb110a80473d8c (patch) | |
| tree | f11417754cd2dff04155dd790c8262d6cb072ac9 /tools/perf/util/hist.c | |
| parent | eec1131091c88e5e72cb012a2e3b3789fbb53c15 (diff) | |
perf bench: Add pmu-scan benchmark
The pmu-scan benchmark will repeatedly scan the sysfs to get the
available PMU information.
$ ./perf bench internals pmu-scan
# Running 'internals/pmu-scan' benchmark:
Computing performance of sysfs PMU event scan for 100 times
Average PMU scanning took: 6850.990 usec (+- 48.445 usec)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230331202949.810326-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/hist.c')
0 files changed, 0 insertions, 0 deletions