linux-kernel - Re: [PATCH] Configurable reclaim batch size

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Message-ID: <Pine.LNX.4.64.0709171304310.28864@schroedinger.engr.sgi.com>
Date:	Mon, 17 Sep 2007 13:05:43 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Mel Gorman <mel@...net.ie>
Subject: Re: [PATCH] Configurable reclaim batch size

On Mon, 17 Sep 2007, Peter Zijlstra wrote:

> > Tried to run AIM7 but the improvements are in the noise. I need a tests 
> > that really does large memory allocation and stresses the LRU. I could 
> > code something up but then Lee's patch addresses some of the same issues.
> > Is there any standard test that shows LRU handling regressions?
> 
> hehe, I wish. I was just hoping you'd done this patch as a result of an
> actual problem and not a hunch.

It was Andrew's hunch. I'd rather see Lee's approach go forward because 
I think it has the potential of solving the issue in a more general way. 
If I get some spare time with a problem system then I will test the patch.

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