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From: Andrew Tridgell <tridge@valinux.com>
To: marcelo@conectiva.com.br
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <Pine.LNX.4.21.0108010023050.8866-100000@freak.distro.conectiva>
	(message from Marcelo Tosatti on Wed, 1 Aug 2001 00:32:55 -0300 (BRT))
Subject: Re: 2.4.8preX VM problems
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Date: Tue, 31 Jul 2001 22:43:26 -0700 (PDT)
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Marcelo wrote:
> Could you please apply
> http://bazar.conectiva.com.br/~marcelo/patches/v2.4/2.4.7pre9/zoned.patch
> on top of 2.4.7 and try to reproduce the problem ? 

yep, that's the culprit. Running an original 2.4.7 with the zoned
patch applied showed the same slowdowns as 2.4.8preX. Looks like the
zoned patch has a problem when the buffer cache grows beyond 800M.