From: Jens Axboe <axboe@suse.de>
To: "ZINKEVICIUS,MATT (HP-Loveland,ex1)" <matt_zinkevicius@hp.com>
Cc: "'linux-mm@kvack.org'" <linux-mm@kvack.org>
Subject: Re: 2.4.6pre3: kswapd dominating CPU
Date: Mon, 25 Jun 2001 20:34:00 +0200 [thread overview]
Message-ID: <20010625203400.D3327@suse.de> (raw)
In-Reply-To: <F341E03C8ED6D311805E00902761278C07EFA675@xfc04.fc.hp.com>; from matt_zinkevicius@hp.com on Mon, Jun 18, 2001 at 05:12:44PM -0700
On Mon, Jun 18 2001, ZINKEVICIUS,MATT (HP-Loveland,ex1) wrote:
> [...] This seems related
> to whether we enable highmem in the kernel, as this problem only appears
> when highmem is set to 4GB or 64GB. Any hints?
>
> Server specs:
> HP LT6000r server
> 4 x 700Mhz P3Xeons
> 4GB RAM
> 1GB swap partition
> 2.4.6pre3 kernel
WIth a machine spec'ed like that, you might want to try with the
zero-bounce patches for highmem machines. Running out of memory and
still requiring low mem bounce buffers can get ugly -- the patches won't
solve any vm issues, but they should solve the problem for you (and
boost your specsfs performance a good deal).
Haven't had time to update to 2.4.6-pre3 yet, if these don't apply let
me know:
*.kernel.org/pub/linux/kernel/people/axboe/patches/2.4.5/block-highmem-all-4.bz2
Dunno what I/O controller you used...
--
Jens Axboe
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next prev parent reply other threads:[~2001-06-25 18:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-19 0:12 ZINKEVICIUS,MATT (HP-Loveland,ex1)
2001-06-19 19:05 ` Rik van Riel
2001-06-25 18:34 ` Jens Axboe [this message]
2001-06-25 22:02 ZINKEVICIUS,MATT (HP-Loveland,ex1)
2001-06-25 22:05 ` Jens Axboe
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