linux-kernel - Re: [patch 21/21] slab defrag: Obsolete SLAB

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Message-ID: <Pine.LNX.4.64.0805141104260.15633@schroedinger.engr.sgi.com>
Date:	Wed, 14 May 2008 11:05:13 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Andi Kleen <andi@...stfloor.org>
cc:	Pekka Enberg <penberg@...helsinki.fi>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Mel Gorman <mel@...net.ie>, mpm@...enic.com,
	Matthew Wilcox <matthew@....cx>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
Subject: Re: [patch 21/21] slab defrag: Obsolete SLAB

On Wed, 14 May 2008, Andi Kleen wrote:

> Ignoring NUMA is no option unfortunately. And with integrated memory
> controller many of the remote CPU frees are off node.

The issue of object expiration holdoffs also affects applications 
running on pure SMP systems.
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