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Date: Tue, 8 Oct 2013 21:24:48 +0200
From: Ingo Molnar <mingo@kernel.org>
To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: David Ahern <dsahern@gmail.com>, Namhyung Kim <namhyung@kernel.org>,
        linux-kernel@vger.kernel.org, Frederic Weisbecker <fweisbec@gmail.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>, Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung.kim@lge.com>,
        Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 2/3] perf stat: Don't require a workload when using
 system wide or CPU options
Message-ID: <20131008192448.GA5018@gmail.com>
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* Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:

> Em Tue, Oct 08, 2013 at 02:51:13PM +0200, Ingo Molnar escreveu:
> > Btw., would anyone be interested in adding CPU and node binding options to 
> > perf stat?
> > 
> > There's code to do something like that in tools/perf/bench/numa.c:
> > 
> >         /* Special option string parsing callbacks: */
> >         OPT_CALLBACK('C', "cpus", NULL, "cpu[,cpu2,...cpuN]",
> >                         "bind the first N tasks to these specific cpus (the rest is unbound)",
> >                         parse_cpus_opt),
> >         OPT_CALLBACK('M', "memnodes", NULL, "node[,node2,...nodeN]",
> >                         "bind the first N tasks to these specific memory nodes (the rest is unbound)",
> >                         parse_nodes_opt),
> 
> As a convenience to using:
> 
> 	taskset -c cpu-list perf stat -C cpu-list workload
> 
> ?

Yeah, something like that would be handy I think.

	Ingo