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| author | Jiri Olsa <jolsa@kernel.org> | 2018-04-23 11:08:21 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-04-26 09:30:27 -0300 |
| commit | e55c14af488a728d314777f038bd05db18afc1e9 (patch) | |
| tree | 8a69dbfcd164035a8e1cf26ea571e7971cc636cf /tools/perf/Documentation | |
| parent | bc22de9bcdb2249150fb5b3c48fdc4f6bedd3ad7 (diff) | |
perf stat: Add --table option to display time of each run
Add --table option to display time for each run (-r option), like:
$ perf stat --null -r 5 --table perf bench sched pipe
Performance counter stats for './perf bench sched pipe' (5 runs):
# Table of individual measurements:
5.379 (-0.176)
5.243 (-0.311)
5.238 (-0.317)
5.536 (-0.019)
6.377 (+0.823)
# Final result:
5.555 +- 0.213 seconds time elapsed ( +- 3.83% )
Suggested-by: Ingo Molnar <mingo@kernel.org>
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: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180423090823.32309-8-jolsa@kernel.org
[ Document the new option in 'perf stat's man page ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-stat.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index e6c3b4e555c2..72a2414513bd 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -116,6 +116,22 @@ Do not aggregate counts across all monitored CPUs. print counts using a CSV-style output to make it easy to import directly into spreadsheets. Columns are separated by the string specified in SEP. +--table:: Display time for each run (-r option), in a table format, e.g.: + + $ perf stat --null -r 5 --table perf bench sched pipe + + Performance counter stats for 'perf bench sched pipe' (5 runs): + + # Table of individual measurements: + 5.379 (-0.176) + 5.243 (-0.311) + 5.238 (-0.317) + 5.536 (-0.019) + 6.377 (+0.823) + + # Final result: + 5.555 +- 0.213 seconds time elapsed ( +- 3.83% ) + -G name:: --cgroup name:: monitor only in the container (cgroup) called "name". This option is available only |