From: Marc Singer <elf@buici.com>
To: Helge Hafting <helgehaf@aitel.hist.no>
Cc: brettspamacct@fastclick.com, linux-kernel@vger.kernel.org
Subject: Re: ~500 megs cached yet 2.6.5 goes into swap hell
Date: Thu, 29 Apr 2004 07:48:04 -0700 [thread overview]
Message-ID: <20040429144804.GB708@buici.com> (raw)
In-Reply-To: <4090CE3D.2010106@aitel.hist.no>
On Thu, Apr 29, 2004 at 11:43:25AM +0200, Helge Hafting wrote:
> Brett E. wrote:
> [...]
> >Or how about "Use ALL the cache you want Mr. Kernel. But when I want
> >more physical memory pages, just reap cache pages and only swap out when
> >the cache is down to a certain size(configurable, say 100megs or
> >something)."
>
> Problem: reaping cache is equivalent to swapping in some cases.
> The cache isn't merely "files read & written".
> It is also all your executable code. Code is not different from
> files being read at all. Dumping too much cache will dump the
> code you're executing, and then it have to be reloaded from disk.
Hmm. I was under the impression that mapped pages were code and
unmapped pages were IO page cache. Are you suggesting that code is
duplicated?
next prev parent reply other threads:[~2004-04-29 14:48 UTC|newest]
Thread overview: 128+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-28 21:27 ~500 megs cached yet 2.6.5 goes into swap hell Brett E.
2004-04-29 0:01 ` Andrew Morton
2004-04-29 0:10 ` Jeff Garzik
2004-04-29 0:21 ` Nick Piggin
2004-04-29 0:50 ` Wakko Warner
2004-04-29 0:53 ` Jeff Garzik
2004-04-29 0:54 ` Nick Piggin
2004-04-29 1:51 ` Tim Connors
2004-04-29 21:45 ` Denis Vlasenko
2004-04-29 0:58 ` Marc Singer
2004-04-29 3:48 ` Nick Piggin
2004-04-29 4:20 ` Marc Singer
2004-04-29 4:26 ` Nick Piggin
2004-04-29 14:49 ` Marc Singer
2004-04-30 4:08 ` Nick Piggin
2004-04-30 22:31 ` Marc Singer
2004-04-29 6:38 ` William Lee Irwin III
2004-04-29 7:36 ` Russell King
2004-04-29 10:44 ` Nick Piggin
2004-04-29 11:04 ` Russell King
2004-04-29 14:52 ` Marc Singer
2004-04-29 20:01 ` Horst von Brand
2004-04-29 20:18 ` Martin J. Bligh
2004-04-29 20:33 ` David B. Stevens
2004-04-29 22:42 ` Steve Youngs
2004-04-29 20:36 ` Paul Jackson
2004-04-29 21:19 ` Andrew Morton
2004-04-29 21:34 ` Paul Jackson
2004-04-29 21:57 ` Andrew Morton
2004-04-29 22:18 ` Paul Jackson
2004-04-30 0:04 ` Andy Isaacson
2004-04-30 0:32 ` Andrew Morton
2004-04-30 0:54 ` Paul Jackson
2004-04-30 5:38 ` Andy Isaacson
2004-04-30 6:00 ` Nick Piggin
2004-04-30 7:52 ` Jeff Garzik
2004-04-30 8:02 ` Andrew Morton
2004-04-30 8:09 ` Jeff Garzik
2004-05-06 13:08 ` Pavel Machek
2004-05-07 15:53 ` Hugh Dickins
2004-05-07 16:57 ` Pavel Machek
2004-05-07 17:30 ` Timothy Miller
2004-05-07 17:43 ` Hugh Dickins
2004-05-07 17:48 ` Mark Frazer
2004-05-12 17:52 ` Rob Landley
2004-05-17 20:16 ` Hugh Dickins
2004-04-29 21:38 ` Timothy Miller
2004-04-29 21:47 ` Paul Jackson
2004-04-29 22:18 ` Timothy Miller
2004-04-29 22:46 ` Paul Jackson
2004-04-29 23:08 ` Timothy Miller
2004-04-30 12:31 ` Bart Samwel
2004-04-30 15:35 ` Clay Haapala
2004-04-30 15:44 ` Bart Samwel
2004-04-30 22:11 ` Paul Jackson
2004-04-30 3:37 ` Tim Connors
2004-04-30 5:15 ` Nick Piggin
2004-04-30 6:20 ` Tim Connors
2004-04-30 6:34 ` Nick Piggin
2004-04-30 7:05 ` Tim Connors
2004-04-30 7:15 ` Nick Piggin
2004-04-30 9:18 ` Re[2]: " vda
2004-04-30 9:33 ` Arjan van de Ven
2004-04-30 11:33 ` Denis Vlasenko
2004-04-30 16:19 ` Timothy Miller
2004-04-29 0:49 ` Brett E.
2004-04-29 1:00 ` Andrew Morton
2004-04-29 1:24 ` Jeff Garzik
2004-04-29 1:40 ` Andrew Morton
2004-04-29 1:47 ` Rik van Riel
2004-04-29 18:14 ` Adam Kropelin
2004-04-30 3:17 ` Tim Connors
2004-04-29 2:19 ` Tim Connors
2004-04-29 16:24 ` Martin J. Bligh
2004-04-29 16:36 ` Chris Friesen
2004-04-29 16:56 ` Martin J. Bligh
2004-04-29 1:30 ` Paul Mackerras
2004-04-29 1:31 ` Paul Mackerras
2004-04-29 1:53 ` Andrew Morton
2004-04-29 2:40 ` Andrew Morton
2004-04-29 2:58 ` Paul Mackerras
2004-04-29 3:09 ` Andrew Morton
2004-04-29 3:14 ` William Lee Irwin III
2004-04-29 6:12 ` Benjamin Herrenschmidt
2004-04-29 6:22 ` Andrew Morton
2004-04-29 6:25 ` Benjamin Herrenschmidt
2004-04-29 6:31 ` William Lee Irwin III
2004-04-29 16:50 ` Martin J. Bligh
2004-04-29 3:57 ` Nick Piggin
2004-04-29 14:29 ` Rik van Riel
2004-04-30 3:00 ` Nick Piggin
2004-04-30 12:50 ` Rik van Riel
2004-04-30 13:07 ` Nick Piggin
2004-04-30 13:18 ` Nikita Danilov
2004-04-30 13:39 ` Nick Piggin
2004-04-29 1:46 ` Rik van Riel
2004-04-29 1:57 ` Andrew Morton
2004-04-29 2:29 ` Marc Singer
2004-04-29 2:35 ` Andrew Morton
2004-04-29 3:10 ` Marc Singer
2004-04-29 3:19 ` Andrew Morton
2004-04-29 4:13 ` Marc Singer
2004-04-29 4:33 ` Andrew Morton
2004-04-29 14:45 ` Marc Singer
2004-04-29 16:51 ` Andy Isaacson
2004-04-29 20:42 ` Andrew Morton
2004-04-29 22:27 ` Andy Isaacson
2004-04-29 23:19 ` Andrew Morton
2004-04-30 0:14 ` Lincoln Dale
2004-04-29 8:02 ` Wichert Akkerman
2004-04-29 14:25 ` Marcelo Tosatti
2004-04-29 14:27 ` Wichert Akkerman
2004-04-29 2:41 ` Rik van Riel
2004-04-29 2:43 ` Andrew Morton
2004-04-29 1:41 ` Tim Connors
2004-04-29 9:43 ` Helge Hafting
2004-04-29 14:48 ` Marc Singer [this message]
2004-04-29 0:44 ` Brett E.
2004-04-29 1:13 ` Andrew Morton
2004-04-29 1:29 ` Brett E.
2004-04-29 18:05 ` Brett E.
2004-04-29 18:32 ` William Lee Irwin III
2004-04-29 20:47 ` Brett E.
2004-04-29 0:04 ` Brett E.
2004-04-29 0:13 ` Jeff Garzik
2004-04-29 0:43 ` Nick Piggin
2004-04-29 13:51 ` Horst von Brand
2004-04-29 18:32 ` Brett E.
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