linux-kernel - Re: [PATCH] Apply memory policies to top two highest zones when highest zone is ZONE

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Message-ID: <Pine.LNX.4.64.0708061216570.7603@schroedinger.engr.sgi.com>
Date:	Mon, 6 Aug 2007 12:18:13 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Andi Kleen <ak@...e.de>, Mel Gorman <mel@...net.ie>,
	Lee.Schermerhorn@...com, kamezawa.hiroyu@...fujitsu.com,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Apply memory policies to top two highest zones when
 highest zone is ZONE_MOVABLE

On Mon, 6 Aug 2007, Andrew Morton wrote:

> If correct, I would suggest merging the horrible hack for .23 then taking
> it out when we merge "grouping pages by mobility".  But what if we don't do
> that merge?

Take the horrible hack for .23.

For .24 either merge the mobility or get the other solution that Mel is 
working on. That solution would only use a single zonelist per node and 
filter on the fly. That may help performance and also help to make memory 
policies work better.
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