perf report: Parse time quantum

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Many workloads change over time. 'perf report' currently aggregates the
whole time range reported in perf.data.

This patch adds an option for a time quantum to quantisize the perf.data
over time.

This just adds the option, will be used in follow on patches for a time
sort key.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20190305144758.12397-6-andi@firstfloor.org
[ Use NSEC_PER_[MU]SEC ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

...

This commit is contained in:

Andi Kleen 2019-03-05 06:47:48 -08:00 • committed by Arnaldo Carvalho de Melo

parent f8c856cb2c

commit 2a1292cbd4

4 changed files with 49 additions and 0 deletions

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4

tools/perf/Documentation/perf-report.txt

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42

tools/perf/builtin-report.c

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2

tools/perf/util/symbol.c

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1

tools/perf/util/symbol_conf.h

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