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From:   ufo19890607 <ufo19890607@gmail.com>
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
Subject: perf stat: Add support to print counts for fixed times
Date:   Wed, 24 Jan 2018 03:43:19 +0100
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From: yuzhoujian <yuzhoujian@didichuxing.com>

Hi Jirka
And how can you control the output for perf stat, if I don't want to use the 
"sleep" workload, like some user programs. I want to check the "cycles"
for this program when it just begin to run.

root@node10:/home$ gcc -g -o malloc malloc.c
root@node10:/home$ ./perf stat -e cycles -I 1000 --times-print 3 ./malloc &
[1] 32586
#           time             counts unit events
     1.000094153      2,914,162,979      cycles                                                      
     2.000323667      3,062,832,799      cycles                                                      
     3.000443807      3,063,146,609      cycles

Best wishes