linux-kernel - Re: [RFC/PATCH 2/2] perf sched: Make common options cascading

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Message-ID: <20161025212713.GB24538@danjae.aot.lge.com>
Date:   Wed, 26 Oct 2016 06:27:13 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Jiri Olsa <jolsa@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        David Ahern <dsahern@...il.com>,
        Andi Kleen <andi@...stfloor.org>,
        Wang Nan <wangnan0@...wei.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [RFC/PATCH 2/2] perf sched: Make common options cascading

On Tue, Oct 25, 2016 at 02:21:32PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, Oct 24, 2016 at 07:03:32PM +0200, Jiri Olsa escreveu:
> > On Mon, Oct 24, 2016 at 12:00:03PM +0900, Namhyung Kim wrote:
> > > The -i and -v options can be used in subcommands so enable cascading the
> > > sched_options.  This fixes the following inconvenience in 'perf sched':
> > > 
> > >   $ perf sched -i perf.data.sched  map
> > >   ... (it works well) ...
> > > 
> > >   $ perf sched map  -i perf.data.sched
> > >     Error: unknown switch `i'
> > > 
> > >    Usage: perf sched map [<options>]
> > > 
> > >           --color-cpus <cpus>
> > >                             highlight given CPUs in map
> > >           --color-pids <pids>
> > >                             highlight given pids in map
> > >           --compact         map output in compact mode
> > >           --cpus <cpus>     display given CPUs in map
> > > 
> > > With this patch, the second command line works with the perf.data.sched
> > > data file.
> > > 
> > > Cc: Josh Poimboeuf <jpoimboe@...hat.com>
> > > Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> > 
> > good idea, I'll use it in c2c ;-)
> > 
> > for both:
> > 
> > Acked-by: Jiri Olsa <jolsa@...nel.org>
> 
> Applied, I guess 'perf kvm' would be another user, to make it sane wrt
> file_name, -i and -o being available for 'perf kvm record', etc.

Yep, I think we have few more.  I'll send the patch when I can find a
time (FYI I'm travelling now).

Thanks,
Namhyung