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Date: Fri, 6 Dec 2002 10:48:58 -0200 (BRST)
From: Rik van Riel <riel@conectiva.com.br>
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To: Norman Gaywood <norm@turing.une.edu.au>
Cc: Pete Zaitcev <zaitcev@redhat.com>, "" <linux-kernel@vger.kernel.org>
Subject: Re: Maybe a VM bug in 2.4.18-18 from RH 8.0?
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On Fri, 6 Dec 2002, Norman Gaywood wrote:
> On Thu, Dec 05, 2002 at 07:35:49PM -0500, Pete Zaitcev wrote:

> > Check your /proc/slabinfo, just in case, to rule out a leak.
>
> Here is a /proc/slabinfo diff of a good system and a very sluggish one:

> > inode_cache       305071 305081    512 43583 43583    1 :  124   62
> > buffer_head       3431966 3432150    128 114405 114405    1 :  252  126

Guess what ?  120 MB in inode cache and 450 MB in buffer heads,
or 570 MB of zone_normal eaten with just these two items.

Looks like the RH kernel needs Stephen Tweedie's patch to
reclaim the buffer heads once IO is done ;)

regards,

Rik
-- 
A: No.
Q: Should I include quotations after my reply?
http://www.surriel.com/		http://guru.conectiva.com/
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