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Re: [PATCH 6/6] perf tools: Try to show pretty printed output for dynamic sort keys

From Arnaldo Carvalho de Melo <acme@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH 6/6] perf tools: Try to show pretty printed output for dynamic sort keys
Date 2015-12-15 11:40 +0100
Message-ID <qFVbs-2PM-15@gated-at.bofh.it> (permalink)
References <qFDxU-83l-1@gated-at.bofh.it> <qFDxU-83l-5@gated-at.bofh.it> <qFTMn-1YA-11@gated-at.bofh.it>
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Em Tue, Dec 15, 2015 at 10:03:29AM +0100, Jiri Olsa escreveu:
> On Tue, Dec 15, 2015 at 12:46:13AM +0900, Namhyung Kim wrote:
> > Each tracepoint event has format string for print to improve
> > readability.  Try to parse the output and match the field name.  If it
> > finds one, use that for the result.  If not, fallbacks to the original
> > output.
> > 
> > For example, sort on kmem:kmalloc.gfp_flags looks like below:
> > (Note: libtraceevent plugins are not installed on my system.  They might
> > affect the output below)
> > 
> > Before:
> >   # Overhead  Command   gfp_flags
> >   # ........  .......  ..........
> >   #
> >       99.89%  perf          32848
> >        0.06%  sleep           208
> >        0.03%  perf          32976
> >        0.01%  perf            208
> > 
> > After:
> >   # Overhead  Command            gfp_flags
> >   # ........  .......  ...................
> >   #
> >       99.89%  perf       GFP_NOFS|GFP_ZERO
> >        0.06%  sleep             GFP_KERNEL
> >        0.03%  perf     GFP_KERNEL|GFP_ZERO
> >        0.01%  perf              GFP_KERNEL
> 
> hum, maybe we want some way to switch back to numbers?

Or remove repetitive stuff like GFP_? I guess this was done already for
perf kmem?

- Arnaldo
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[PATCH 6/6] perf tools: Try to show pretty printed output for dynamic sort keys Namhyung Kim <namhyung@kernel.org> - 2015-12-14 16:50 +0100
  Re: [PATCH 6/6] perf tools: Try to show pretty printed output for  dynamic sort keys Jiri Olsa <jolsa@redhat.com> - 2015-12-15 10:10 +0100
    Re: [PATCH 6/6] perf tools: Try to show pretty printed output for  dynamic sort keys Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-15 11:40 +0100
      Re: [PATCH 6/6] perf tools: Try to show pretty printed output for  dynamic sort keys Namhyung Kim <namhyung@kernel.org> - 2015-12-15 13:20 +0100
        Re: [PATCH 6/6] perf tools: Try to show pretty printed output for  dynamic sort keys Jiri Olsa <jolsa@redhat.com> - 2015-12-15 13:30 +0100
          Re: [PATCH 6/6] perf tools: Try to show pretty printed output for  dynamic sort keys Namhyung Kim <namhyung@kernel.org> - 2015-12-15 13:50 +0100
            Re: [PATCH 6/6] perf tools: Try to show pretty printed output for  dynamic sort keys Jiri Olsa <jolsa@redhat.com> - 2015-12-15 14:00 +0100

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