linux-kernel - Re: [PATCH 0/2] perf_events: add support for Intel fixed counter 2

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Date:	Sun, 06 Feb 2011 22:55:45 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Stephane Eranian <eranian@...gle.com>
CC:	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, paulus@...ba.org,
	davem@...emloft.net, fweisbec@...il.com,
	perfmon2-devel@...ts.sf.net, eranian@...il.com,
	robert.richter@....com, acme@...hat.com, ming.m.lin@...el.com
Subject: Re: [PATCH 0/2] perf_events: add support for Intel fixed counter
 2

On 02/05/2011 06:19 PM, Stephane Eranian wrote:
> Hi,
> 
> Ok, another, easier, choice would be to use event code 0 (and
> umaks 0x1 for instance). I doubt that one will ever be used.
> 
> 

Seems so, but there is no guarantee I think (at least for p4 there is
0x0 event (tc-deliver-mode)) though 0x1 should make it unique enough.

-- 
    Cyrill
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