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| author | Namhyung Kim <namhyung@kernel.org> | 2022-09-23 17:42:19 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-04 08:55:23 -0300 |
| commit | 6282a1f4f846fda21b16065a2ef094c7b71b2771 (patch) | |
| tree | 2bd3d71935fe4e9eca0301a9e3f390fad4f04bf5 /tools/perf/Documentation | |
| parent | 84838712e92eab3dfa37b97100f32490507373b2 (diff) | |
| download | lwn-6282a1f4f846fda21b16065a2ef094c7b71b2771.tar.gz lwn-6282a1f4f846fda21b16065a2ef094c7b71b2771.zip | |
perf lock: Add -E/--entries option
Like in 'perf top', the -E option can limit number of entries to print.
It can be useful when users want to see top N contended locks only.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220924004221.841024-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-lock.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-lock.txt b/tools/perf/Documentation/perf-lock.txt index 5f2dc634258e..b23e76200ac2 100644 --- a/tools/perf/Documentation/perf-lock.txt +++ b/tools/perf/Documentation/perf-lock.txt @@ -94,6 +94,11 @@ REPORT OPTIONS EventManager_De 1845 1 636 futex-default-S 1609 0 0 +-E:: +--entries=<value>:: + Display this many entries. + + INFO OPTIONS ------------ @@ -105,6 +110,7 @@ INFO OPTIONS --map:: dump map of lock instances (address:name table) + CONTENTION OPTIONS -------------- @@ -154,6 +160,10 @@ CONTENTION OPTIONS --stack-skip Number of stack depth to skip when finding a lock caller (default: 3). +-E:: +--entries=<value>:: + Display this many entries. + SEE ALSO -------- |