linux-kernel - Re: [PATCH -mm 00/16] VM pageout scalability improvements (V8)

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Message-ID: <483B0077.7000207@linux.vnet.ibm.com>
Date:	Mon, 26 May 2008 23:54:55 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Rik van Riel <riel@...hat.com>
CC:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lee Schermerhorn <lee.schermerhorn@...com>,
	Kosaki Motohiro <kosaki.motohiro@...fujitsu.com>
Subject: Re: [PATCH -mm 00/16] VM pageout scalability improvements (V8)

Rik van Riel wrote:
> On large memory systems, the VM can spend way too much time scanning
> through pages that it cannot (or should not) evict from memory. Not
> only does it use up CPU time, but it also provokes lock contention
> and can leave large systems under memory presure in a catatonic state.

Hi, Rik,

This patchset looks good (I did a brief scan). I'll go ahead and play with it?
What is a good memory size to test the patches on (to see improvements).


-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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