linux-kernel - Re: The performance and behaviour of the anti-fragmentation related patches

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Message-ID: <45E8AAB9.7040707@redhat.com>
Date:	Fri, 02 Mar 2007 17:52:41 -0500
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Rik van Riel <riel@...hat.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Bill Irwin <bill.irwin@...cle.com>,
	Christoph Lameter <clameter@...r.sgi.com>,
	Mel Gorman <mel@...net.ie>, npiggin@...e.de, mingo@...e.hu,
	jschopp@...tin.ibm.com, arjan@...radead.org,
	torvalds@...ux-foundation.org, mbligh@...igh.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: The performance and behaviour of the anti-fragmentation related
 patches

Rik van Riel wrote:
> 32GB is pretty much the minimum size to reproduce some of these
> problems. Some workloads may need larger systems to easily trigger
> them.
> 

Hundreds of disks all doing IO at once may also be needed, as
wli points out. Such systems are not readily available for testing.



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