From mboxrd@z Thu Jan 1 00:00:00 1970 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 Message-ID: <1516192645-27187-1-git-send-email-ufo19890607@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, dsahern@gmail.com, namhyung@kernel.org, milian.wolff@kdab.com, arnaldo.melo@gmail.com, yuzhoujian@didichuxing.com, adrian.hunter@intel.com, wangnan0@huawei.com Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, acme@redhat.com List-Id: linux-perf-users.vger.kernel.org From: yuzhoujian 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