linux-kernel - Re: [RFC 0/8] Variable Order Page Cache

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Message-ID: <Pine.LNX.4.64.0704191214100.13064@schroedinger.engr.sgi.com>
Date:	Thu, 19 Apr 2007 12:15:52 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Andi Kleen <ak@...e.de>
cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Paul Jackson <pj@....com>, Dave Chinner <dgc@....com>
Subject: Re: [RFC 0/8] Variable Order Page Cache

On Thu, 19 Apr 2007, Andi Kleen wrote:

> > We likely need actual defragmentation support.
> 
> To be honest it looks quite pointless before this is solved. So far it is
> not even clear if it is feasible to solve it.

We have done order 1 / 2 allocations for some limited purposes for some 
time (task struct etc). But you are right: We need to figure out how high 
we can go with Mel's antifrag and defrag work.
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