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Date:   Fri, 14 Aug 2020 09:58:59 -0300
From:   Arnaldo Carvalho de Melo <>
To:     Changbin Du <>
Cc:     Jiri Olsa <>,
        Peter Zijlstra <>,
        Ingo Molnar <>,
        Namhyung Kim <>,
        Steven Rostedt <>,
Subject: Re: [PATCH v8 04/18] perf ftrace: add option '-m/--buffer-size' to
 set per-cpu buffer size

Em Fri, Aug 14, 2020 at 09:12:50AM -0300, Arnaldo Carvalho de Melo escreveu:
> > It indicates that the argument is in units of 'pages', while you don't
> > state that in:
> >   
> >   $ perf ftrace -h -m
> >   
> >       -m, --buffer-size <size>
> >                             size of per cpu buffer

I did this already:

  # perf ftrace -h -m
   Usage: perf ftrace [<options>] [<command>]
      or: perf ftrace [<options>] -- <command> [<options>]
      -m, --buffer-size <size>
                            Size of per cpu buffer, needs to use a B, K, M or G suffix.

- Arnaldo

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