Messages in this thread | | | From | ufo19890607 <> | Subject | [PATCH 0/1] perf stat: Add support to print counts for fixed times | Date | Wed, 17 Jan 2018 13:37:24 +0100 |
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From: yuzhoujian <yuzhoujian@didichuxing.com>
Introduce a new option to print counts for fixed number of times and update perf-stat documentation accordingly.
Show below is the output of the new option for perf stat.
$perf stat -I 1000 --times-print 2 -e cycles -a # time counts unit events 1.002827089 93,884,870 cycles 2.004231506 56,573,446 cycles
We can just print the counts for several times with this newly introduced option. The usage of it is a little like vmstat.
$ vmstat -n 1 2 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 0 78270544 547484 51732076 0 0 0 20 1 1 1 0 99 0 0 0 0 0 78270512 547484 51732080 0 0 0 16 477 1555 0 0 100 0 0
yuzhoujian (1): perf stat: Add support to print counts for fixed times
tools/perf/Documentation/perf-stat.txt | 5 +++++ tools/perf/builtin-stat.c | 13 +++++++++++++ tools/perf/util/stat.h | 1 + 3 files changed, 19 insertions(+)
-- 2.14.1
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