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| author | Namhyung Kim <namhyung@kernel.org> | 2023-03-31 22:29:44 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-04 18:23:58 +0200 |
| commit | f6a7bbbfe61cc34c4e443141d3eb110a80473d8c (patch) | |
| tree | f11417754cd2dff04155dd790c8262d6cb072ac9 /tools/perf/builtin-bench.c | |
| parent | perf pmu: Add perf_pmu__destroy() function (diff) | |
| download | linux-f6a7bbbfe61cc34c4e443141d3eb110a80473d8c.tar.xz linux-f6a7bbbfe61cc34c4e443141d3eb110a80473d8c.zip | |
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/builtin-bench.c')
| -rw-r--r-- | tools/perf/builtin-bench.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c index d0fcc3cdc185..58f1cfe1eb34 100644 --- a/tools/perf/builtin-bench.c +++ b/tools/perf/builtin-bench.c @@ -92,6 +92,7 @@ static struct bench internals_benchmarks[] = { { "kallsyms-parse", "Benchmark kallsyms parsing", bench_kallsyms_parse }, { "inject-build-id", "Benchmark build-id injection", bench_inject_build_id }, { "evlist-open-close", "Benchmark evlist open and close", bench_evlist_open_close }, + { "pmu-scan", "Benchmark sysfs PMU info scanning", bench_pmu_scan }, { NULL, NULL, NULL } }; |