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src/linux/perf.cpp (lines 435 - 437)
<https://reviews.apache.org/r/44379/#comment186282>

    Hm.. this comment is really hard for me to understand, if OS vendors 
enhance the format, how did you know that they only use this particular format 
and not others?


- Ben Mahler


On March 10, 2016, 3:26 a.m., fan du wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/44379/
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> 
> (Updated March 10, 2016, 3:26 a.m.)
> 
> 
> Review request for mesos and Ben Mahler.
> 
> 
> Bugs: MESOS-4705
>     https://issues.apache.org/jira/browse/MESOS-4705
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> For vanilla kernel <= 3.12, 'perf stat' format is:
>   value,event,cgroup
> Tested with 3.12, 3.11, 3.10 vanilla kernel.
> 
> OS vendors may enhance perf tools with additional format:
>   value,unit,event,cgroup,running,ratio
> Tested on Centos 7 with kernel 3.10.0-{123 OR 229}.el7.x86_64
> 
> 
> Diffs
> -----
> 
>   src/linux/perf.cpp 1c113a2b3f57877e132bbd65e01fb2f045132128 
> 
> Diff: https://reviews.apache.org/r/44379/diff/
> 
> 
> Testing
> -------
> 
> 1. {Found and Test} with Serenity, ema filter could get perf event statistics 
> correctly as expected.
> 2. ./bin/mesos-tests.sh --gtest_filter=PerfEventIsolatorTest* 
> --log_dir=/tmp/mesos/
> 
> 
> Thanks,
> 
> fan du
> 
>

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