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Re: [PATCH 06/14] perf tools: show NMI overhead

From Andi Kleen <andi@firstfloor.org>
Newsgroups linux.kernel
Subject Re: [PATCH 06/14] perf tools: show NMI overhead
Date 2016-11-25 01:30 +0100
Message-ID <sHcyR-1Mu-3@gated-at.bofh.it> (permalink)
References <sGJQd-7SF-5@gated-at.bofh.it> <sGJQf-7SF-59@gated-at.bofh.it> <sGOGd-2vZ-7@gated-at.bofh.it> <sH2pQ-3mp-39@gated-at.bofh.it> <sH48i-4wC-33@gated-at.bofh.it>
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> how about we display the overhead information same way the main perf output:
> 
>   CPU    NMI   NMI time    MTX  MTX time      SB   SB time
>   ...  .....   ........  .....  ........  ......  ........
>     6     27     111379      0         0      57     90045
> 
> 
> would be just matter of adding new sort objects

The problem with making overhead a standard sort key is that you have
to chose between an output format that makes sense for overhead
and one that makes sense for normal samples.

But overhead is more "auxillary" information, so it should be possible
to access it together with normal sampling information in a single
output file.

So I think it's better handled separately.

-Andi

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[PATCH 00/14] export perf overheads information kan.liang@intel.com - 2016-11-23 18:50 +0100
  [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:20 +0100
    Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:20 +0100
    Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:50 +0100
      RE: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 14:50 +0100
        Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-24 15:00 +0100
          RE: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 15:10 +0100
            Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Jiri Olsa <jolsa@redhat.com> - 2016-11-24 15:30 +0100
              Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Jiri Olsa <jolsa@redhat.com> - 2016-11-24 15:50 +0100
              RE: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 15:50 +0100
          Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Andi Kleen <andi@firstfloor.org> - 2016-11-24 19:30 +0100
            Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-24 20:00 +0100
              Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Andi Kleen <andi@firstfloor.org> - 2016-11-24 20:10 +0100
                Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-24 20:10 +0100
  [PATCH 11/14] perf tools: record write data overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 11/14] perf tools: record write data overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:10 +0100
    Re: [PATCH 11/14] perf tools: record write data overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:20 +0100
  [PATCH 04/14] perf/x86: output side-band events overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 04/14] perf/x86: output side-band events overhead Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:10 +0100
    Re: [PATCH 04/14] perf/x86: output side-band events overhead Mark Rutland <mark.rutland@arm.com> - 2016-11-24 17:30 +0100
      RE: [PATCH 04/14] perf/x86: output side-band events overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 20:50 +0100
  [PATCH 07/14] perf tools: show multiplexing overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
  [PATCH 08/14] perf tools: show side-band events overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
  [PATCH 05/14] perf tools: handle PERF_RECORD_OVERHEAD record type kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 05/14] perf tools: handle PERF_RECORD_OVERHEAD record type Jiri Olsa <jolsa@redhat.com> - 2016-11-23 23:40 +0100
      Re: [PATCH 05/14] perf tools: handle PERF_RECORD_OVERHEAD record type Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
  [PATCH 12/14] perf tools: record elapsed time kan.liang@intel.com - 2016-11-23 18:50 +0100
  [PATCH 13/14] perf tools: warn on high overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 13/14] perf tools: warn on high overhead Andi Kleen <andi@firstfloor.org> - 2016-11-23 21:30 +0100
      RE: [PATCH 13/14] perf tools: warn on high overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-23 23:10 +0100
        Re: [PATCH 13/14] perf tools: warn on high overhead Andi Kleen <andi@firstfloor.org> - 2016-11-25 21:50 +0100
  [PATCH 14/14] perf script: show overhead events kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:30 +0100
    Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:30 +0100
    Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:40 +0100
    Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:40 +0100
  [PATCH 03/14] perf/x86: output multiplexing overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 03/14] perf/x86: output multiplexing overhead Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:10 +0100
      RE: [PATCH 03/14] perf/x86: output multiplexing overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-23 21:20 +0100
  [PATCH 10/14] perf tools: introduce PERF_RECORD_USER_OVERHEAD kan.liang@intel.com - 2016-11-23 18:50 +0100
  [PATCH 06/14] perf tools: show NMI overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
    Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
    Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
      RE: [PATCH 06/14] perf tools: show NMI overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 14:40 +0100
        Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 16:30 +0100
          Re: [PATCH 06/14] perf tools: show NMI overhead Namhyung Kim <namhyung@kernel.org> - 2016-11-25 00:30 +0100
            Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-25 00:50 +0100
          Re: [PATCH 06/14] perf tools: show NMI overhead Andi Kleen <andi@firstfloor.org> - 2016-11-25 01:30 +0100
    Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
  Re: [PATCH 00/14] export perf overheads information Ingo Molnar <mingo@kernel.org> - 2016-11-24 05:30 +0100

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