Messages in this thread Patch in this message | | | From | Yang Jihong <> | Subject | [PATCH] perf pmu: Filter out search events table of software pmu in perf_pmu__lookup() | Date | Mon, 16 Oct 2023 09:33:09 +0000 |
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For software pmu, the events_table is empty, reducing unnecessary search.
Signed-off-by: Yang Jihong <yangjihong1@huawei.com> --- tools/perf/util/pmu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 6428e2648289..59c8394a4efa 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -1033,7 +1033,8 @@ struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char pmu->id = pmu_id(name); pmu->max_precise = pmu_max_precise(dirfd, pmu); pmu->alias_name = pmu_find_alias_name(pmu, dirfd); - pmu->events_table = perf_pmu__find_events_table(pmu); + if (!perf_pmu__is_software(pmu)) + pmu->events_table = perf_pmu__find_events_table(pmu); pmu_add_sys_aliases(pmu); list_add_tail(&pmu->list, pmus); -- 2.34.1
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