From: Chris Wedgwood <cw@f00f.org>
To: Andrew Morton <akpm@osdl.org>
Cc: piggin@cyberone.com.au, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] vm-fix-all_zones_ok (was Re: 2.6.3-mm3)
Date: Tue, 24 Feb 2004 01:30:56 -0800 [thread overview]
Message-ID: <20040224093056.GA31521@dingdong.cryptoapps.com> (raw)
In-Reply-To: <20040224012222.453e7db7.akpm@osdl.org>
On Tue, Feb 24, 2004 at 01:22:22AM -0800, Andrew Morton wrote:
> Sigh. There is absolutely nothing wrong with having a large slab
> cache.
Unless the slab contains useful data (ie. dentries that will actually
be accessed is some useful amount of time) then arguably those pages
are better used for the page-cache.
> And there is nothing necessarily right about having a small one.
Oh, I'm not claiming one is more right than the other. The issue for
me is updatedb or even bk clone a few times will cause the slab to
swell with dentries and related contents that never seems to shrink
without forcing swapping.
> Sorry, but your comment is information-free.
I just notice I'm getting debugging output (call traces) for page
allocation failures which I've not seem before. I was getting these
(swapper: page allocation failure. order:2, mode:0x20) after beating
things to see how bad things will get for Nick.
In this case slab is consuming so much low memory we're getting
allocation failures which was making networking choppy.
--cw
next prev parent reply other threads:[~2004-02-24 9:30 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-23 1:22 2.6.3-mm3 Andrew Morton
2004-02-23 1:43 ` 2.6.3-mm3 Nick Piggin
2004-02-23 1:55 ` 2.6.3-mm3 Andrew Morton
2004-02-23 2:02 ` 2.6.3-mm3 Nick Piggin
2004-02-23 2:51 ` 2.6.3-mm3 Nick Piggin
2004-02-23 3:04 ` 2.6.3-mm3 Nick Piggin
2004-02-23 8:08 ` 2.6.3-mm3 Nick Piggin
2004-02-23 8:48 ` [PATCH] vm-fix-all_zones_ok (was Re: 2.6.3-mm3) Nick Piggin
2004-02-23 8:59 ` Andrew Morton
2004-02-23 9:21 ` Nick Piggin
2004-02-23 9:24 ` Andrew Morton
2004-02-23 16:23 ` Bill Davidsen
2004-02-23 22:47 ` Chris Wedgwood
2004-02-24 4:11 ` Nick Piggin
2004-02-24 9:12 ` Chris Wedgwood
2004-02-24 9:22 ` Andrew Morton
2004-02-24 9:30 ` Chris Wedgwood [this message]
2004-02-24 9:37 ` Andrew Morton
2004-02-24 20:55 ` Rik van Riel
2004-02-24 22:36 ` Andrew Morton
2004-02-24 22:41 ` Rik van Riel
2004-02-23 2:19 ` 2.6.3-mm3 Christoph Hellwig
2004-02-23 2:52 ` 2.6.3-mm3 Joshua Kwan
2004-02-23 3:34 ` 2.6.3-mm3 Joshua Kwan
2004-02-23 18:09 ` [patch] 2.6.3-mm3: ALSA miXart driver doesn't compile Adrian Bunk
2004-02-23 18:58 ` 2.6.3-mm3 (compile stats) John Cherry
2004-02-23 20:00 ` Sam Ravnborg
2004-02-24 22:22 ` 2.6.3-mm3 Mike Fedyk
2004-02-24 22:30 ` 2.6.3-mm3 Andrew Morton
2004-02-25 21:27 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 1:06 ` 2.6.3-mm3 Nick Piggin
2004-02-26 1:18 ` 2.6.3-mm3 Marc-Christian Petersen
2004-02-26 1:28 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 1:32 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 1:52 ` 2.6.3-mm3 Nick Piggin
2004-02-26 2:34 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 2:40 ` 2.6.3-mm3 Nick Piggin
2004-02-26 2:48 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 3:05 ` 2.6.3-mm3 Nick Piggin
2004-02-26 3:19 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 3:29 ` 2.6.3-mm3 Nick Piggin
2004-02-26 4:08 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 4:56 ` 2.6.3-mm3 Mike Fedyk
2004-02-27 19:02 ` 2.6.3-mm3 Mike Fedyk
2004-02-27 21:57 ` 2.6.3-mm3 Nick Piggin
2004-02-25 0:26 ` 2.6.3-mm3 hangs on boot x440 (scsi?) john stultz
2004-02-25 1:06 ` Andrew Morton
2004-02-25 1:22 ` john stultz
2004-02-25 1:27 ` john stultz
2004-02-25 1:48 ` Andrew Morton
2004-02-25 22:15 ` john stultz
2004-02-26 14:40 ` Go Taniguchi
2004-02-26 21:26 ` john stultz
2004-02-26 23:02 ` john stultz
2004-02-26 23:15 ` Matthew Wilcox
2004-02-27 0:14 ` john stultz
2004-02-27 0:58 ` john stultz
2004-02-27 2:25 ` john stultz
2004-02-25 1:15 ` [PATCH 2.6.3-mm3] serialize_writeback_fdatawait patch Daniel McNeil
2004-02-25 1:43 ` Andrew Morton
2004-02-25 22:56 ` Daniel McNeil
2004-02-25 2:51 ` 2.6.3-mm3 Mike Fedyk
2004-02-25 3:09 ` 2.6.3-mm3 Andrew Morton
2004-02-25 3:34 ` 2.6.3-mm3 Mike Fedyk
2004-02-25 10:47 ` 2.6.3-mm3 sometimes freeze on "sync" Helge Hafting
2004-02-25 9:39 ` Andrew Morton
2004-02-26 8:49 ` Helge Hafting
2004-02-27 14:49 ` Alexander Hoogerhuis
2004-02-27 23:34 ` 2.6.3-mm3 john stultz
2004-02-28 0:06 ` 2.6.3-mm3 Andrew Morton
2004-02-28 2:48 ` 2.6.3-mm3 (ioremap failure w/ _X86_4G and _NUMA) john stultz
2004-02-28 3:18 ` Dave Hansen
2004-02-28 4:34 ` Martin J. Bligh
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