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Commit 7db7218a authored by Andi Kleen's avatar Andi Kleen Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarAndi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20190711181922.18765-3-andi@firstfloor.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 5f8eec32

tools/perf/Documentation/perf-script.txt

+3 −3
Original line number Original line Diff line number Diff line
@@ -228,11 +228,11 @@ OPTIONS 




	With the metric option perf script can compute metrics for

	With the metric option perf script can compute metrics for

	sampling periods, similar to perf stat. This requires

	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

	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

	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,

	For sample events it's possible to display misc field with -F +misc option,

	following letters are displayed for each bit:

	following letters are displayed for each bit: