Commit 6b45f7b2 authored by Andi Kleen's avatar Andi Kleen Committed by Arnaldo Carvalho de Melo

perf stat: Document CSV format in manpage

With all the recently added fields in the perf stat CSV output we should
finally document them in the man page. Do this here.

v2: Fix fields in documentation (Jiri)
v3: fix order of fields again (Jiri)
v4: Change order again.
v5: Document more fields (Jiri)
v6: Move time stamp first
v7: More fixes (Jiri)
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1457049458-28956-5-git-send-email-andi@firstfloor.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 599a2f38
...@@ -219,6 +219,29 @@ $ perf stat -- make -j ...@@ -219,6 +219,29 @@ $ perf stat -- make -j
Wall-clock time elapsed: 719.554352 msecs Wall-clock time elapsed: 719.554352 msecs
CSV FORMAT
----------
With -x, perf stat is able to output a not-quite-CSV format output
Commas in the output are not put into "". To make it easy to parse
it is recommended to use a different character like -x \;
The fields are in this order:
- optional usec time stamp in fractions of second (with -I xxx)
- optional CPU, core, or socket identifier
- optional number of logical CPUs aggregated
- counter value
- unit of the counter value or empty
- event name
- run time of counter
- percentage of measurement time the counter was running
- optional variance if multiple values are collected with -r
- optional metric value
- optional unit of metric
Additional metrics may be printed with all earlier fields being empty.
SEE ALSO SEE ALSO
-------- --------
linkperf:perf-top[1], linkperf:perf-list[1] linkperf:perf-top[1], linkperf:perf-list[1]
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