linux-kernel - Re: [PATCH 12/32] nohz: Try not to give the timekeeping duty to a cpuset nohz cpu

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Message-ID: <1314629745.2816.84.camel@twins>
Date:	Mon, 29 Aug 2011 16:55:45 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Anton Blanchard <anton@....ibm.com>,
	Avi Kivity <avi@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	"Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
	Paul Menage <menage@...gle.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tim Pepper <lnxninja@...ux.vnet.ibm.com>,
	Dimitri Sivanich <sivanich@....com>
Subject: Re: [PATCH 12/32] nohz: Try not to give the timekeeping duty to a
 cpuset nohz cpu

On Mon, 2011-08-15 at 17:52 +0200, Frederic Weisbecker wrote:
> Try to give the timekeeing duty to a CPU that doesn't belong
> to any nohz cpuset when possible, so that we increase the chance
> for these nohz cpusets to run their CPUs out of periodic tick
> mode. 

You and Dmitiri might want to get together:

lkml.kernel.org/r/20110823195628.GB4533@....com
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