Messages in this thread | | | Date | Mon, 2 Dec 2013 17:24:59 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 1/3] perf tools: Record total sampling time |
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Em Mon, Dec 02, 2013 at 05:36:20PM +0100, Ingo Molnar escreveu: > * Namhyung Kim <namhyung@kernel.org> wrote: > > 2013-12-02 (월), 13:57 +0100, Ingo Molnar: > > > So basically, in the end I think it should be possible to have the > > > following behavior:
> > > perf record -a -e cycles sleep 1
> > > perf report stat # Reports as if we ran: 'perf stat -a -e cycles sleep 1' > > > perf report # Reports the usual histogram
> > > perf report --stat # Reports the perf stat output and the histogram
> > > or so.
> > I don't think we need both of 'perf report stat' and 'perf report > > --stat'. At least it looks somewhat confusing to users IMHO.
> Okay. Maybe the --stat option would be the more logical choice, > because '--' options can be added arbitrarily, while it would be weird > to add multiple subcommand options.
> So basically there would be two options:
> --show-stat [--no-show-stat] > --show-histogram [--no-show-histogram]
> Today --show-histogram is the only one enabled by default.
> Running:
> perf report --no-show-histogram --show-stat
Why not:
perf stat -i perf.data
and make it be an optional argument, so plain:
perf stat -i
would process perf.data, i.e. would get the samples, accrue the periods, calculate the time, etc and then present it as 'perf stat <some target>'.
Right now 'perf stat -i' i used for '--no-inherit', perhaps we can just have --no-inherit have no short option and grab -i to have the same meaning as in 'report', 'script', etc.
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