From: Anthony DiSante <orders@nodivisions.com>
To: linux-kernel@vger.kernel.org
Subject: Re: why swap at all?
Date: Wed, 26 May 2004 05:42:19 -0400 [thread overview]
Message-ID: <40B4667B.5040303@nodivisions.com> (raw)
In-Reply-To: <40B4590A.1090006@yahoo.com.au>
Nick Piggin wrote:
> The VM doesn't always get it right, and to make matters worse, desktop
> users don't appreciate their long running jobs finishing earlier, but
> *hate* having to wait a few seconds for a window to appear if it hasn't
> been used for 24 hours.
Come on, that is quite an exaggeration. It can happen in a span of minutes
-- after rsyncing a dir to a backup dir, for example, which fills ram rather
quickly with cache I'll never use again. Or after configuring and compiling
a package, which does the same thing.
As you said, the VM doesn't, in fact, always get it right. If 512MB worked
before when it was half swap, 512MB of pure ram will work too, only faster.
I don't see how adding more swap at that point could increase performance
unless you are keeping your ram full of non-cached pages, and that's never
the case for me -- my ram is almost always half cached pages.
-Anthony
http://nodivisions.com/
next prev parent reply other threads:[~2004-05-26 9:42 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 [this message]
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
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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