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Date:   Fri, 14 Aug 2020 09:58:59 -0300
From:   Arnaldo Carvalho de Melo <acme@kernel.org>
To:     Changbin Du <changbin.du@gmail.com>
Cc:     Jiri Olsa <jolsa@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v8 04/18] perf ftrace: add option '-m/--buffer-size' to
 set per-cpu buffer size
Message-ID: <20200814125859.GH13995@kernel.org>
References: <20200808023141.14227-1-changbin.du@gmail.com>
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 <20200814115318.GT13995@kernel.org>
 <20200814121250.GX13995@kernel.org>
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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