linux-kernel - Re: [patch] Performance Counters for Linux, v3

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Date:	Fri, 12 Dec 2008 18:03:36 +0100
From:	Samuel Thibault <samuel.thibault@...-lyon.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Vince Weaver <vince@...ter.net>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Stephane Eranian <eranian@...glemail.com>,
	Eric Dumazet <dada1@...mosbay.com>,
	Robert Richter <robert.richter@....com>,
	Arjan van de Veen <arjan@...radead.org>,
	Peter Anvin <hpa@...or.com>, Paul Mackerras <paulus@...ba.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [patch] Performance Counters for Linux, v3

Peter Zijlstra, le Fri 12 Dec 2008 09:25:45 +0100, a écrit :
> On Thu, 2008-12-11 at 13:02 -0500, Vince Weaver wrote:
> > Also, my primary method of using counters is total aggregate count for a 
> > single user-space process. 
> 
> Process, as in single thread, or multi-threaded? I'll assume
> single-thread.

BTW, just to make sure it is taken into account (I haven't followed the
thread up to here, just saw a "pid_t" somwhere that alarmed me): for our
uses, we _do_ need per-kernelthread counters.

Samuel
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