linux-kernel - Re: [PATCHv3 0/3] perf tool: Add new event group management

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Date:	Mon, 2 Jul 2012 12:15:18 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	acme@...hat.com, a.p.zijlstra@...llo.nl, mingo@...e.hu,
	paulus@...ba.org, cjashfor@...ux.vnet.ibm.com, fweisbec@...il.com,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	andi@...stfloor.org, drepper@...il.com
Subject: Re: [PATCHv3 0/3] perf tool: Add new event group management

On Mon, Jul 02, 2012 at 10:53:44AM +0900, Namhyung Kim wrote:
> Hi, Jiri
> 
> On Fri, 29 Jun 2012 11:08:24 +0200, Jiri Olsa wrote:
> > hi,
> > adding support for creating event groups based on the way they
> > are specified on the command line.
> >
> > This patchset adds the '{}' style grammar to express event group,
> > allowing so far only the 'event modifier' as group modifier.
> >
> > The sample/leader modifier changes are ready, but I'm getting
> > some weird numbers in tests, so I'll send it later. Meanwhile,
> > it'd be nice to have at least this patchset in.. ;)
> >
> 
> Just a question, is there a way to know about the grouping at perf
> report time?

nope, AFAIK only ID and perf_event_attr is stored for event
grouping is known only for record time

jirka
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