From: Roger Luethi <rl@hellgate.ch>
To: Anthony DiSante <orders@nodivisions.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: why swap at all?
Date: Wed, 26 May 2004 10:27:12 +0200 [thread overview]
Message-ID: <20040526082712.GA32326@k3.hellgate.ch> (raw)
In-Reply-To: <40B43B5F.8070208@nodivisions.com>
On Wed, 26 May 2004 02:38:23 -0400, Anthony DiSante wrote:
> Now I buy another 256MB of ram, so I have 512MB of real memory. Why not
> just disable my swap completely now? I won't have increased my memory's
> size at all, but won't I have increased its performance lots?
>
> Or, to make it more appealing, say I initially had 512MB ram and now I have
> 1GB. Wouldn't I much rather not use swap at all anymore, in this case, on
> my desktop?
Swap serves another (often underrated) purpose: Graceful degradation.
If you have a reasonably amount of swap space mounted, you will know
you are running out of RAM because your system will become noticeably
slower. If you have no swap whatsoever, your first warning will quite
possibly be an application OOM killed or losing data due to a failed
memory allocation.
Think of the slowness of swap as a _feature_.
Roger
next prev parent reply other threads:[~2004-05-26 8:27 UTC|newest]
Thread overview: 152+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-26 6:38 why swap at all? Anthony DiSante
2004-05-26 7:31 ` Buddy Lumpkin
2004-05-26 7:55 ` William Lee Irwin III
2004-05-26 8:30 ` Buddy Lumpkin
2004-05-26 8:44 ` Nick Piggin
2004-05-26 9:34 ` John Bradford
2004-05-26 9:48 ` Nick Piggin
2004-05-26 10:10 ` Matthias Schniedermeyer
2004-05-26 10:33 ` Nick Piggin
2004-05-26 10:58 ` Matthias Schniedermeyer
2004-05-26 11:19 ` Nick Piggin
2004-05-26 12:27 ` Matthias Schniedermeyer
2004-05-27 5:38 ` Nick Piggin
2004-05-26 12:37 ` Matthias Schniedermeyer
2004-05-26 13:06 ` Gianni Tedesco
2004-05-26 13:41 ` Matt H.
2004-05-26 13:55 ` Buddy Lumpkin
2004-05-27 5:14 ` Tom Felker
2004-05-27 6:02 ` Nick Piggin
2004-05-27 7:04 ` Bernd Eckenfels
2004-05-27 7:16 ` Oliver Neukum
2004-05-26 10:45 ` Martin Olsson
2004-05-26 11:25 ` Nick Piggin
2004-05-26 16:33 ` David Schwartz
2004-05-26 16:58 ` John Bradford
2004-05-26 23:32 ` Kyle Moffett
2004-05-27 8:05 ` John Bradford
2004-05-26 10:46 ` John Bradford
2004-05-26 11:46 ` Buddy Lumpkin
2004-05-26 11:39 ` Buddy Lumpkin
2004-05-26 9:42 ` Anthony DiSante
2004-05-26 9:58 ` Nick Piggin
2004-05-26 20:11 ` Wakko Warner
2004-05-27 5:59 ` Nick Piggin
2004-05-27 14:34 ` Wakko Warner
2004-05-26 10:40 ` Buddy Lumpkin
2004-05-26 13:15 ` Helge Hafting
2004-05-26 9:09 ` William Lee Irwin III
2004-05-26 11:38 ` Buddy Lumpkin
2004-05-26 12:12 ` Paulo Marques
2004-05-26 12:14 ` Nick Piggin
2004-05-26 12:40 ` Denis Vlasenko
2004-05-26 10:41 ` Denis Vlasenko
2004-05-26 12:07 ` Buddy Lumpkin
2004-05-26 12:06 ` Marc-Christian Petersen
2004-05-26 12:19 ` Denis Vlasenko
2004-05-26 13:48 ` Buddy Lumpkin
2004-05-26 12:33 ` Richard B. Johnson
2004-05-26 13:25 ` Buddy Lumpkin
2004-05-26 12:30 ` Rik van Riel
2004-05-26 10:44 ` Denis Vlasenko
2004-05-26 11:49 ` Buddy Lumpkin
2004-05-26 12:19 ` Rik van Riel
2004-05-26 12:55 ` Buddy Lumpkin
2004-05-26 8:27 ` Roger Luethi [this message]
2004-05-26 9:23 ` John Bradford
2004-05-26 9:30 ` Roger Luethi
2004-05-26 10:35 ` John Bradford
2004-05-26 10:37 ` Nick Piggin
2004-05-26 10:48 ` John Bradford
2004-05-26 13:01 ` Helge Hafting
2004-05-26 8:32 ` Denis Vlasenko
2004-05-26 9:00 ` Helge Hafting
2004-05-26 9:40 ` John Bradford
2004-05-26 13:06 ` Helge Hafting
2004-06-01 7:23 ` swappiness ignored Anthony DiSante
2004-06-01 9:36 ` Marc-Christian Petersen
2004-06-01 19:38 ` Anthony DiSante
2004-06-01 19:42 ` Marc-Christian Petersen
2004-06-02 19:54 ` Bill Davidsen
2004-06-02 23:33 ` Con Kolivas
2004-05-26 9:06 ` why swap at all? John Bradford
2004-05-26 12:31 ` Buddy Lumpkin
2004-05-26 10:02 ` Raphael Jacquot
2004-05-26 13:00 ` Satoshi Oshima
2004-05-26 13:38 ` William Lee Irwin III
-- strict thread matches above, loose matches on Subject: below --
2004-05-26 11:04 Nick Piggin
2004-05-26 11:57 Nick Piggin
2004-05-26 12:19 ` Buddy Lumpkin
2004-05-26 12:24 Nick Piggin
2004-05-26 13:03 ` Buddy Lumpkin
2004-05-26 13:27 ` Helge Hafting
2004-05-26 12:34 Piszcz, Justin Michael
2004-05-27 5:37 Nick Piggin
2004-05-27 17:27 ` Buddy Lumpkin
[not found] <fa.fegqf9v.kmidof@ifi.uio.no>
[not found] ` <fa.bqpvcrs.u648jq@ifi.uio.no>
2004-05-27 11:39 ` Andy Lutomirski
2004-05-28 21:37 ` Denis Vlasenko
2004-05-28 22:28 ` Bernd Eckenfels
2004-05-29 7:31 ` Denis Vlasenko
2004-05-31 10:49 ` jlnance
2004-06-01 11:57 ` Lenar Lõhmus
2004-06-01 12:27 ` Robin Rosenberg
2004-06-01 16:49 ` jlnance
2004-06-02 18:38 ` John Hendrikx
2004-06-01 12:21 ` David B. Stevens
2004-05-27 12:31 Piszcz, Justin Michael
2004-05-27 12:41 ` William Lee Irwin III
2004-05-27 15:59 ` John Bradford
2004-05-27 16:16 ` William Lee Irwin III
2004-06-03 13:38 ` Bill Davidsen
2004-05-31 19:34 Michael Brennan
2004-05-31 20:29 ` John Bradford
2004-05-31 22:47 ` Nick Piggin
2004-05-31 23:30 ` Bernd Eckenfels
2004-06-01 18:36 ` FabF
2004-06-01 19:02 ` Valdis.Kletnieks
2004-06-01 19:53 ` FabF
2004-06-01 20:00 ` Valdis.Kletnieks
2004-06-01 20:14 ` FabF
2004-06-01 20:22 ` Valdis.Kletnieks
2004-06-01 21:15 ` FabF
2004-06-01 21:40 ` Valdis.Kletnieks
2004-06-03 13:54 ` Bill Davidsen
2004-06-04 0:01 ` Nick Piggin
2004-06-01 23:17 ` Bernd Eckenfels
2004-06-02 5:38 ` FabF
2004-06-02 11:42 ` Con Kolivas
2004-06-02 12:22 ` John Bradford
2004-06-02 12:22 ` Con Kolivas
2004-06-02 17:06 ` FabF
2004-06-03 14:14 ` Bill Davidsen
2004-06-04 7:23 ` Buddy Lumpkin
2004-06-04 17:08 ` Bill Davidsen
2004-06-15 14:55 ` Charles Shannon Hendrix
2004-06-04 9:11 ` Catalin BOIE
2004-06-04 17:24 ` Bill Davidsen
2004-06-06 14:39 ` Rik van Riel
2004-06-02 17:59 ` Valdis.Kletnieks
2004-06-02 18:30 ` FabF
2004-06-02 23:54 ` Con Kolivas
2004-06-03 16:16 ` FabF
2004-06-03 23:56 ` Con Kolivas
2004-06-04 0:16 ` Con Kolivas
2004-06-03 14:18 ` Bill Davidsen
2004-06-03 14:27 ` Con Kolivas
2004-06-02 17:52 ` Valdis.Kletnieks
2004-06-02 3:50 ` Tim Connors
2004-06-02 17:45 ` Valdis.Kletnieks
2004-06-01 8:34 ` John Bradford
2004-06-01 8:32 ` William Lee Irwin III
2004-06-01 8:50 ` John Bradford
2004-06-01 8:54 ` William Lee Irwin III
2004-06-01 9:10 ` John Bradford
2004-06-08 1:18 ` Tim Connors
2004-06-08 5:29 ` Denis Vlasenko
2004-06-01 9:38 ` Buddy Lumpkin
2004-06-01 10:13 ` Tim Connors
2004-06-01 10:24 ` William Lee Irwin III
2004-06-01 11:19 ` Tim Connors
[not found] <fa.amhil9e.o5kt1u@ifi.uio.no>
[not found] ` <fa.kfm8lru.1l2mdp4@ifi.uio.no>
2004-06-08 15:12 ` Ray Bryant
2004-06-08 15:15 ` Ray Bryant
2004-06-09 19:24 ` Bill Davidsen
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