linux-kernel - Re: [PATCH v2] perf tools: Allow passing perf's own pid to '--filter'

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Date:	Tue, 7 Jul 2015 10:27:13 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Wang Nan <wangnan0@...wei.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"Liang, Kan" <kan.liang@...el.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Andi Kleen <ak@...ux.intel.com>, jacob.w.shin@...il.com,
	standby24x7@...il.com, Li Zefan <lizefan@...wei.com>,
	yunlong.song@...wei.com, Steven Rostedt <rostedt@...dmis.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	pi3orama@....com
Subject: Re: [PATCH v2] perf tools: Allow passing perf's own pid to '--filter'

Em Tue, Jul 07, 2015 at 09:33:02PM +0900, Namhyung Kim escreveu:
> On Tue, Jul 7, 2015 at 12:38 PM, Wang Nan <wangnan0@...wei.com> wrote:
> > This patch introduces '$PERFPID' placeholder to perf's filter. Now
> > user is allowed to do the above work with:

> >   # perf record -e ... --filter='common_pid != $PERFPID' -a sleep 10
 
> Instead, what about adding an option to do the same thing, like
> --exclude-perf or something?

Good idea, that would be more compact, yes.

- Arnaldo
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