linux-kernel - Re: [PATCH 27/33] tools, perf: Add a precise event qualifier

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Message-ID: <20121028200603.GG2266@tassilo.jf.intel.com>
Date:	Sun, 28 Oct 2012 13:06:03 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	acme@...hat.com, peterz@...radead.org, eranian@...gle.com,
	mingo@...nel.org
Subject: Re: [PATCH 27/33] tools, perf: Add a precise event qualifier

On Sun, Oct 28, 2012 at 08:24:49PM +0100, Jiri Olsa wrote:
> On Sun, Oct 28, 2012 at 08:13:13PM +0100, Andi Kleen wrote:
> > On Sat, Oct 27, 2012 at 09:35:44PM +0200, Jiri Olsa wrote:
> > > On Fri, Oct 26, 2012 at 01:30:09PM -0700, Andi Kleen wrote:
> > > > From: Andi Kleen <ak@...ux.intel.com>
> > > > 
> > > > Add a precise qualifier, like cpu/event=0x3c,precise=1/
> > > hm, I think this works already via 'p' modifier like:
> > >    cpu/event=0x3c/p
> > 
> > Not for kernel specified events, which is why this was needed.
> 
> I haven't checked deeply, but I thought the modifier is always
> applied, what do you mean by 'kernel specified events' ?

Events exported in sysfs.

See the earlier patches in the patchkit.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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