From: yuzhoujian <yuzhouj...@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
