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| author | Ian Rogers <irogers@google.com> | 2023-08-24 07:13:28 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-08-24 17:10:27 +0300 |
| commit | 8d4b6d37ea7862d230ad2e1bd4c7d2ff5e9acd53 (patch) | |
| tree | c39d7ee6301ac6dc5690b89f2e00b124eee33362 /tools/perf/builtin-buildid-list.c | |
| parent | 7b723dbb96e85a63a8f01e2b3fdfb76aa5d418a8 (diff) | |
| download | linux-8d4b6d37ea7862d230ad2e1bd4c7d2ff5e9acd53.tar.xz | |
perf pmu: Lazily load sysfs aliases
Don't load sysfs aliases for a PMU when the PMU is first created, defer
until an alias needs to be found. For the pmu-scan benchmark, average
core PMU scanning is reduced by 30.8%, and average PMU scanning by
12.6%.
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/20230824041330.266337-17-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-buildid-list.c')
0 files changed, 0 insertions, 0 deletions