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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Matthias Schniedermeyer <ms@citd.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: why swap at all?
Date: Wed, 26 May 2004 21:19:40 +1000	[thread overview]
Message-ID: <40B47D4C.6050206@yahoo.com.au> (raw)
In-Reply-To: <20040526105837.GA13810@citd.de>

Matthias Schniedermeyer wrote:
> On Wed, May 26, 2004 at 08:33:28PM +1000, Nick Piggin wrote:
> 
>>Matthias Schniedermeyer wrote:
>>

>>>In my personal machine i have 3GB of RAM and i regularly create
>>>DVD-ISO-Images (about 2 per day). After creating an image (reading up to
>>>4,4GB and writing up to 4,4GB) the cache is 100% trashed(1). With swap
>>>it would be even more trashed then it is without swap(1).
>>>
>>
>>I don't disagree that you could find a situation where swap
>>is worse than no swap. I don't understand what you mean by
>>trashed and more trashed though :)
> 
> 
> trashed means "everything i need(tm)" is paged out (mozilla/konsole/xine
> ...)
> 
> with swap the data-part of running programs was swapped out, without
> swap only the program-part is thrown out of memory as the data-part
> can't be moved anywhere else.
> 
> I have a 10KPRM SCSI-HDD, i can here what my system is doing. :-)
> 

OK, this is obviously bad. Do you get this behaviour with 2.6.5
or 2.6.6? If so, can you strace the program while it is writing
an ISO? (just send 20 lines or so). Or tell me what program you
use to create them and how to create one?

Thanks

  reply	other threads:[~2004-05-26 11:19 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 [this message]
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
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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