linux-kernel - Re: [PATCH 4/4] perf, x86: Add PERF_COUNT_HW_NMI

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Message-ID: <20110425134126.GB20887@redhat.com>
Date:	Mon, 25 Apr 2011 09:41:26 -0400
From:	Don Zickus <dzickus@...hat.com>
To:	Cyrill Gorcunov <gorcunov@...il.com>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>, "x86@...nel.org" <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] perf, x86: Add PERF_COUNT_HW_NMI_WATCHDOG event

On Fri, Apr 22, 2011 at 07:15:12PM +0400, Cyrill Gorcunov wrote:
> On 04/22/2011 01:45 PM, Peter Zijlstra wrote:
> ...
> > 
> > Right, so the idea is that one event (concept) has two (or more)
> > representations in the config space. And when scheduling the events we
> > find we have a conflict, we simply try the alternative encoding(s).
> > 
> ...
> 
>   Yeah, Peter, I think it's quite possible to use alternative encoding for p4 as well,
> not sure tho if some "generalized" approach for all perf would be applied to p4 but
> we can make event "aliases" being per-pmu eventually.
> 
>   So Ingo, drop this patch then ;)

Eek, when can you have an alternate patch for this Cyril?  I just want to
make sure this can still eventually find its way into 2.6.40.

Cheers,
Don
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