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Date:	Tue, 27 Oct 2009 22:00:04 +0100
From:	Frans Pop <>
To:	Mel Gorman <>
Cc:	David Rientjes <>,
	Andrew Morton <>,
	stable <>, "Rafael J. Wysocki" <>,
	David Miller <>,
	reinette chatre <>,
	Kalle Valo <>,
	"John W. Linville" <>,
	Pekka Enberg <>,
	Bartlomiej Zolnierkiewicz <>,
	Karol Lewandowski <>,,,
	"" <>
Subject: Re: [PATCH 2/2] page allocator: Direct reclaim should always obey watermarks

On Saturday 17 October 2009, Frans Pop wrote:
> On Saturday 17 October 2009, Mel Gorman wrote:
> > Frans, you reported that both patches in combination reduced the
> > number of failures. Was it in fact just the kswapd change that made
> > the difference?
> I will retest both patches (as I already mailed you privately
> yesterday), but not today. The improvement with the combination was
> real, but I'm not sure which patch is the reason. I think the second,
> but I need to verify.
> I've done another 30 boots or so today, mainly in the "akpm" merge, and
> I've found new patterns that will help me nail down the regression. But
> ATM I can't see straight anymore, so it will have to wait until
> tomorrow.

Again sorry for the delay, but I needed to retest these with various 
kernels as the results were inconclusive. AFAICT neither of the two 
patches makes a significant difference for my test case.

Not sure if my initial test was broken or that it was just a case where the 
timings worked out favorably.

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