diff options
| author | Ian Rogers <irogers@google.com> | 2023-08-23 21:13:19 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-08-24 11:00:09 -0300 |
| commit | e3edd6cf6399f17114081d0e20f31ddadafb70b5 (patch) | |
| tree | ccff8d4bda9776d1dec664ff73e6c75ccaf2116f /tools/perf/tests | |
| parent | c4ac7f7542e7bc958453f8fdcb528348308539dc (diff) | |
perf pmu-events: Reduce processed events by passing PMU
Pass the PMU to pmu_events_table__for_each_event so that entries that
don't match don't need to be processed by callback.
If a NULL PMU is passed then all PMUs are processed.
'perf bench internals pmu-scan's "Average PMU scanning" performance is
reduced by about 5% on an Intel tigerlake.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Gaosheng Cui <cuigaosheng1@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230824041330.266337-8-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests')
| -rw-r--r-- | tools/perf/tests/pmu-events.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c index 0b6efabc3d20..92d1f6f0e666 100644 --- a/tools/perf/tests/pmu-events.c +++ b/tools/perf/tests/pmu-events.c @@ -483,12 +483,14 @@ static int test__pmu_event_table(struct test_suite *test __maybe_unused, if (!table || !sys_event_table) return -1; - err = pmu_events_table__for_each_event(table, test__pmu_event_table_core_callback, + err = pmu_events_table__for_each_event(table, /*pmu=*/ NULL, + test__pmu_event_table_core_callback, &map_events); if (err) return err; - err = pmu_events_table__for_each_event(sys_event_table, test__pmu_event_table_sys_callback, + err = pmu_events_table__for_each_event(sys_event_table, /*pmu=*/ NULL, + test__pmu_event_table_sys_callback, &map_events); if (err) return err; |