Commit-ID: 7db7218a7ea577f04c2df92453d47ab5ebfc8863 Gitweb: https://git.kernel.org/tip/7db7218a7ea577f04c2df92453d47ab5ebfc8863 Author: Andi Kleen <ak@xxxxxxxxxxxxxxx> AuthorDate: Thu, 11 Jul 2019 11:19:22 -0700 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> CommitDate: Tue, 23 Jul 2019 08:58:11 -0300 perf script: Improve man page description of metrics Clarify that a metric is based on events, not referring to itself. Also some improvements with the sentences. Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Link: http://lkml.kernel.org/r/20190711181922.18765-3-andi@xxxxxxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- tools/perf/Documentation/perf-script.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 042b9e5dcc32..caaab28f8400 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -228,11 +228,11 @@ OPTIONS With the metric option perf script can compute metrics for sampling periods, similar to perf stat. This requires - specifying a group with multiple metrics with the :S option + specifying a group with multiple events defining metrics with the :S option for perf record. perf will sample on the first event, and - compute metrics for all the events in the group. Please note + print computed metrics for all the events in the group. Please note that the metric computed is averaged over the whole sampling - period, not just for the sample point. + period (since the last sample), not just for the sample point. For sample events it's possible to display misc field with -F +misc option, following letters are displayed for each bit:
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