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Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output

From Andi Kleen <andi@firstfloor.org>
Newsgroups linux.kernel
Subject Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output
Date 2016-02-18 18:40 +0100
Message-ID <r3AIz-yZ-35@gated-at.bofh.it> (permalink)
References <r3j4Z-4A2-11@gated-at.bofh.it> <r3j50-4A2-39@gated-at.bofh.it> <r3Afx-lQ-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> Where before it wasn't there:
> 
> cat /tmp/before
> 0.282628,,task-clock,282628,100.00
> 1,,context-switches,282628,100.00
> 0,,cpu-migrations,282628,100.00
> 52,,page-faults,282628,100.00
> 861213,,cycles,285354,100.00
> <not supported>,,stalled-cycles-frontend,0,100.00
> <not supported>,,stalled-cycles-backend,0,100.00
> 686082,,instructions,285354,100.00
> 137846,,branches,285354,100.00
> 7142,,branch-misses,285354,100.00

This is intentional. See the standard perf output:


          521,232      instructions              #    0.63  insns per cycle        
                                                 #    1.13  stalled cycles per insn

So this line has multiple metrics. In CSV this is expressed as a mostly empty line.

-Andi

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Thread

[PATCH 2/6] perf, tools, stat: Implement CSV metrics output Andi Kleen <andi@firstfloor.org> - 2016-02-17 23:50 +0100
  Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-02-18 18:10 +0100
    Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output Andi Kleen <andi@firstfloor.org> - 2016-02-18 18:40 +0100
      Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output Jiri Olsa <jolsa@redhat.com> - 2016-02-21 19:00 +0100
        Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output Andi Kleen <andi@firstfloor.org> - 2016-02-22 17:30 +0100
  Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output Jiri Olsa <jolsa@redhat.com> - 2016-02-21 19:00 +0100

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