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| author |   Jiri Olsa <jolsa@kernel.org> | 2018-01-07 17:03:55 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-01-10 12:00:56 -0300 |
| commit | a4a4d0a7a2b20f7880262de4f51685baaf693476 (patch) | |
| tree | bf6c28dcefaa93d1a4180a9aa69497a047a1b0d6 /tools/perf/Documentation/perf-report.txt | |
| parent | perf tools: Make the tool's warning messages optional (diff) | |
| download | linux-dev-a4a4d0a7a2b20f7880262de4f51685baaf693476.tar.xz linux-dev-a4a4d0a7a2b20f7880262de4f51685baaf693476.zip | |
perf report: Add --stats option to display quick data statistics
Add --stats option to display quick data statistics of event numbers,
without any further processing, like the one at the end of the perf
report -D command.
$ perf report --stat
Aggregated stats:
TOTAL events: 4566
MMAP events: 113
LOST events: 19
COMM events: 3
FORK events: 400
SAMPLE events: 3315
MMAP2 events: 32
FINISHED_ROUND events: 681
THREAD_MAP events: 1
CPU_MAP events: 1
TIME_CONV events: 1
I found this useful when hunting lost events for another change.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180107160356.28203-12-jolsa@kernel.org
[ Rename it to --stats, plural ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-report.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 1e02c4e1a81f..a7d11ef2fe25 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -457,6 +457,10 @@ include::itrace.txt[] will be printed. Each entry is function name or file/line. Enabled by default, disable with --no-inline. +--stats:: + Display overall events statistics without any further processing. + (like the one at the end of the perf report -D command) + include::callchain-overhead-calculation.txt[] SEE ALSO |