diff options
| author | Ian Rogers <irogers@google.com> | 2023-08-23 21:13:25 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-08-24 11:08:47 -0300 |
| commit | e6ff1eed3584362dcf5ffb6b9daf497183b4d3a8 (patch) | |
| tree | 29819cdefc880a4073488fda221e9328cbf4e124 /tools/perf/util/pmu.h | |
| parent | perf pmu: Cache JSON events table (diff) | |
| download | linux-e6ff1eed3584362dcf5ffb6b9daf497183b4d3a8.tar.gz linux-e6ff1eed3584362dcf5ffb6b9daf497183b4d3a8.zip | |
perf pmu: Lazily add JSON events
Rather than scanning all JSON events and adding them when a PMU is
created, add the alias when the JSON event is needed.
Average core PMU scanning run time reduced by 60.2%. Average PMU
scanning run time reduced by 15%. Page faults with no events reduced by
74 page faults, 4% of total.
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/20230824041330.266337-14-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/pmu.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 6bf0fbde4e85..288d2908382a 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -118,6 +118,15 @@ struct perf_pmu { * @events_table: The events table for json events in pmu-events.c. */ const struct pmu_events_table *events_table; + /** @sysfs_aliases: Number of sysfs aliases loaded. */ + uint32_t sysfs_aliases; + /** @sysfs_aliases: Number of json event aliases loaded. */ + uint32_t loaded_json_aliases; + /** + * @cpu_aliases_added: Have all json events table entries for the PMU + * been added? + */ + bool cpu_aliases_added; /** @caps_initialized: Has the list caps been initialized? */ bool caps_initialized; /** @nr_caps: The length of the list caps. */ @@ -199,9 +208,9 @@ bool perf_pmu__has_format(const struct perf_pmu *pmu, const char *name); bool is_pmu_core(const char *name); bool perf_pmu__supports_legacy_cache(const struct perf_pmu *pmu); bool perf_pmu__auto_merge_stats(const struct perf_pmu *pmu); -bool perf_pmu__have_event(const struct perf_pmu *pmu, const char *name); -size_t perf_pmu__num_events(const struct perf_pmu *pmu); -int perf_pmu__for_each_event(const struct perf_pmu *pmu, void *state, pmu_event_callback cb); +bool perf_pmu__have_event(struct perf_pmu *pmu, const char *name); +size_t perf_pmu__num_events(struct perf_pmu *pmu); +int perf_pmu__for_each_event(struct perf_pmu *pmu, void *state, pmu_event_callback cb); bool pmu__name_match(const struct perf_pmu *pmu, const char *pmu_name); /** |