linux-kernel - Re: [v7 0/8] Reduce cross CPU IPI interference

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Message-ID: <1328117722.2446.262.camel@twins>
Date:	Wed, 01 Feb 2012 18:35:22 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Gilad Ben-Yossef <gilad@...yossef.com>
Cc:	linux-kernel@...r.kernel.org, Christoph Lameter <cl@...ux.com>,
	Chris Metcalf <cmetcalf@...era.com>,
	Frederic Weisbecker <fweisbec@...il.com>, linux-mm@...ck.org,
	Pekka Enberg <penberg@...nel.org>,
	Matt Mackall <mpm@...enic.com>,
	Sasha Levin <levinsasha928@...il.com>,
	Rik van Riel <riel@...hat.com>,
	Andi Kleen <andi@...stfloor.org>, Mel Gorman <mel@....ul.ie>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Avi Kivity <avi@...hat.com>,
	Michal Nazarewicz <mina86@...a86.com>,
	Kosaki Motohiro <kosaki.motohiro@...il.com>,
	Milton Miller <miltonm@....com>,
	paulmck <paulmck@...ux.vnet.ibm.com>
Subject: Re: [v7 0/8] Reduce cross CPU IPI interference

On Sun, 2012-01-29 at 10:25 +0200, Gilad Ben-Yossef wrote:
> 
> If this is of interest, I keep a list tracking global IPI and global
> task schedulers sources in the core kernel here:
> https://github.com/gby/linux/wiki. 

You can add synchronize_.*_expedited() to the list, it does its best to
bash the entire machine in order to try and make RCU grace periods
happen fast.
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