netdev - Re: [RFC][PATCH 1/6] mm: slab allocation fairness

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Message-Id: <1164915218.6588.163.camel@twins>
Date:	Thu, 30 Nov 2006 20:33:38 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Christoph Lameter <clameter@....com>
Cc:	netdev@...r.kernel.org, linux-mm@...ck.org,
	David Miller <davem@...emloft.net>
Subject: Re: [RFC][PATCH 1/6] mm: slab allocation fairness

On Thu, 2006-11-30 at 11:33 -0800, Christoph Lameter wrote:
> On Thu, 30 Nov 2006, Peter Zijlstra wrote:
> 
> > No, the forced allocation is to test the allocation hardness at that
> > point in time. I could not think of another way to test that than to
> > actually to an allocation.
> 
> Typically we do this by checking the number of free pages in a zone 
> compared to the high low limits. See mmzone.h.

True, I did think about that and started out that way but saw myself
duplicating a lot of the page allocation code. I'll give it another
try... see if I can factor out the common parts without too much
duplication.

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