linux-kernel - Re: [PATCH 0/4] Finer granularity and task/cgroup irq time accounting

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Date:	Tue, 24 Aug 2010 10:49:06 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Frédéric Weisbecker <fweisbec@...il.com>,
	Venkatesh Pallipadi <venki@...gle.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Paul Menage <menage@...gle.com>, linux-kernel@...r.kernel.org,
	Paul Turner <pjt@...gle.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Paul Mackerras <paulus@...ba.org>,
	Tony Luck <tony.luck@...el.com>
Subject: Re: [PATCH 0/4] Finer granularity and task/cgroup irq time
 accounting

On Tue, 2010-08-24 at 10:14 +0200, Ingo Molnar wrote:
> Right, andthis connects to something Frederic sent a few RFC patches for 
> some time ago: finegrained irq/softirq perf stat support. If we do 
> something in this area we need a facility that enables both types of 
> statistics gathering. 

That facility is called irq_enter() and irq_exit() etc..
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