From: Rik van Riel <riel@redhat.com>
To: Jens Axboe <axboe@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
William Lee Irwin III <wli@holomorphy.com>,
karl.vogel@pandora.be, linux-mm@kvack.org
Subject: Re: Kernel 2.6.8.1: swap storm of death - nr_requests > 1024 on swap partition
Date: Sun, 29 Aug 2004 10:45:43 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.44.0408291045030.20421-100000@chimarrao.boston.redhat.com> (raw)
In-Reply-To: <20040829141718.GD10955@suse.de>
On Sun, 29 Aug 2004, Jens Axboe wrote:
> Oh, and I think the main issue is the vm. It should cope correctly no
> matter how much pending memory can be in progress on the queue, else it
> should not write out so much. CFQ is just exposing this bug because it
> defaults to bigger nr_requests.
Agreed. If the VM is short 10MB of free memory, it really
shouldn't start 200MB worth of writes.
--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
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next prev parent reply other threads:[~2004-08-29 14:45 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20040824124356.GW2355@suse.de>
[not found] ` <412CDE7E.9060307@seagha.com>
[not found] ` <20040826144155.GH2912@suse.de>
[not found] ` <412E13DB.6040102@seagha.com>
[not found] ` <412E31EE.3090102@pandora.be>
[not found] ` <41308C62.7030904@seagha.com>
[not found] ` <20040828125028.2fa2a12b.akpm@osdl.org>
[not found] ` <4130F55A.90705@pandora.be>
2004-08-28 21:43 ` Andrew Morton
2004-08-28 21:54 ` William Lee Irwin III
2004-08-28 22:13 ` Andrew Morton
2004-08-28 22:28 ` William Lee Irwin III
2004-08-29 10:30 ` Andrew Morton
2004-08-29 14:15 ` Jens Axboe
2004-08-29 14:17 ` Jens Axboe
2004-08-29 14:45 ` Rik van Riel [this message]
2004-08-29 20:18 ` Andrew Morton
2004-08-29 20:30 ` Jens Axboe
2004-08-29 20:59 ` Andrew Morton
2004-08-29 22:17 ` William Lee Irwin III
2004-08-29 22:28 ` Andrew Morton
2004-08-30 7:41 ` Hugh Dickins
2004-08-30 15:20 ` Marcelo Tosatti
2004-08-30 18:01 ` Karl Vogel
2004-08-30 17:16 ` Marcelo Tosatti
2004-08-30 22:59 ` Karl Vogel
2004-08-30 20:33 ` Marcelo Tosatti
2004-08-30 22:37 ` Andrew Morton
2004-08-30 22:17 ` Marcelo Tosatti
2004-08-30 23:51 ` Andrew Morton
2004-08-31 10:23 ` Marcelo Tosatti
2004-08-31 16:02 ` Marcelo Tosatti
2004-08-31 17:50 ` Karl Vogel
2004-08-31 16:52 ` Marcelo Tosatti
2004-08-31 18:24 ` Karl Vogel
2004-08-31 17:25 ` Marcelo Tosatti
2004-08-31 19:36 ` Karl Vogel
2004-09-02 9:05 ` Rik van Riel
2004-08-30 23:02 ` Karl Vogel
2004-08-29 16:54 ` Jens Axboe
2004-08-29 17:52 ` William Lee Irwin III
2004-08-28 21:59 ` Karl Vogel
2004-08-29 16:53 ` Jens Axboe
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