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From: Daniel Phillips <phillips@bonn-fries.net>
To: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>,
        Shawn Starr <spstarr@sh0n.net>, Linux <linux-kernel@vger.kernel.org>
Subject: Re: 2.4.19-preX: What we really need: -AA patches finally in =?iso-8859-1?q?the	tree?=
Date: Sun, 24 Feb 2002 06:44:36 +0100
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On February 26, 2002 02:32 am, Martin J. Bligh wrote:
> > Not to begin the flamewar, but no thanks. rmap-12f blows -aa away AFAIK
> > on this P200 w/ 64MB ram.
> 
> rmap still sucks on large systems though.

But this is not a fundamental issue, it's implementation.  Whereas non-rmap
will always suck on large systems, for fundamental reasons that are unrelated
to the quality of the implementation.

> I'd love to see rmap
> in the main kernel, but it needs to get the scalability fixed first.

Yes.

> The main problem seems to be pagemap_lru_lock ... Rik & crew 
> know about this problem, but let's give them some time to fix it 
> before rmap gets put into mainline ....

Yes, yes and yes.

-- 
Daniel
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