From: Kurt Roeckx <Q@ping.be>
To: "Dr S.M. Huen" <smh1008@cus.cam.ac.uk>
Cc: Sean Hunter <sean@dev.sportingbet.com>,
Xavier Bestel <xavier.bestel@free.fr>,
linux-kernel@vger.kernel.org
Subject: Re: Break 2.4 VM in five easy steps
Date: Wed, 6 Jun 2001 19:17:26 +0200 [thread overview]
Message-ID: <20010606191726.B421@ping.be> (raw)
In-Reply-To: <20010606095431.C15199@dev.sportingbet.com> <Pine.SOL.3.96.1010606103559.20297A-100000@draco.cus.cam.ac.uk>
In-Reply-To: <Pine.SOL.3.96.1010606103559.20297A-100000@draco.cus.cam.ac.uk>
On Wed, Jun 06, 2001 at 10:57:57AM +0100, Dr S.M. Huen wrote:
> On Wed, 6 Jun 2001, Sean Hunter wrote:
>
> >
> > For large memory boxes, this is ridiculous. Should I have 8GB of swap?
> >
>
> Do I understand you correctly?
> ECC grade SDRAM for your 8GB server costs £335 per GB as 512MB sticks even
> at today's silly prices (Crucial). Ultra160 SCSI costs £8.93/GB as 73GB
> drives.
Maybe you really should reread the statements people made about
this before.
One of them being, that if you're not using swap in 2.2, it won't
need any in 2.4 either.
2.4 will use more swap in case it does use it. It now works more
like other UNIX variants where the rule is that swap = 2 * RAM.
That swap = 2 * RAM is just a guideline, you really should look
at what applications you run, and how memory they use. If you
choise your RAM so that all application can always be in memory
at all time, there is no need for swap. If they can't be, the
rule might help you.
I think someone said that the swap should be large enough to hold
all application that are running on swapspace, that is, in case
you want to use swap.
Disk maybe be alot cheaper than RAM, but it's also alot slower.
Kurt
next prev parent reply other threads:[~2001-06-06 17:23 UTC|newest]
Thread overview: 142+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-05 22:19 Break 2.4 VM in five easy steps Derek Glidden
2001-06-05 23:38 ` Jeffrey W. Baker
2001-06-06 1:42 ` Russell Leighton
2001-06-06 7:14 ` Sean Hunter
2001-06-06 7:47 ` Jonathan Morton
2001-06-06 2:16 ` Andrew Morton
2001-06-06 3:19 ` Derek Glidden
2001-06-06 8:19 ` Xavier Bestel
2001-06-06 8:54 ` Sean Hunter
2001-06-06 9:16 ` Xavier Bestel
2001-06-06 9:25 ` Sean Hunter
2001-06-06 10:04 ` Jonathan Morton
2001-06-06 9:57 ` Dr S.M. Huen
2001-06-06 10:06 ` DBs (ML)
2001-06-06 10:08 ` Vivek Dasmohapatra
2001-06-06 10:19 ` Lauri Tischler
2001-06-06 10:22 ` Sean Hunter
2001-06-06 10:48 ` Alexander Viro
2001-06-06 16:58 ` dean gaudet
2001-06-06 17:10 ` Remi Turk
2001-06-06 22:44 ` Kai Henningsen
2001-06-09 7:17 ` Rik van Riel
2001-06-06 16:47 ` dean gaudet
2001-06-06 17:17 ` Kurt Roeckx [this message]
2001-06-06 18:35 ` Dr S.M. Huen
2001-06-06 18:40 ` Mark Salisbury
2001-06-06 19:11 ` android
2001-06-07 0:27 ` Mike A. Harris
2001-06-07 0:20 ` Mike A. Harris
2001-06-09 8:16 ` Rik van Riel
2001-06-09 8:57 ` Mike A. Harris
2001-06-07 21:31 ` Shane Nay
2001-06-07 20:00 ` Marcelo Tosatti
2001-06-07 21:55 ` Shane Nay
2001-06-07 20:29 ` Marcelo Tosatti
2001-06-07 23:29 ` VM Report was:Re: " Shane Nay
2001-06-08 1:18 ` Jonathan Morton
2001-06-08 12:50 ` Mike Galbraith
2001-06-08 14:19 ` Tobias Ringstrom
2001-06-08 15:51 ` John Stoffel
2001-06-08 17:01 ` Mike Galbraith
2001-06-08 17:43 ` John Stoffel
2001-06-08 17:35 ` Marcelo Tosatti
2001-06-08 20:58 ` John Stoffel
2001-06-08 20:04 ` Marcelo Tosatti
2001-06-08 23:44 ` Jonathan Morton
2001-06-09 2:36 ` Andrew Morton
2001-06-09 6:33 ` Mark Hahn
2001-06-09 3:43 ` Mike Galbraith
2001-06-09 4:05 ` Jonathan Morton
2001-06-09 5:09 ` Mike Galbraith
2001-06-09 5:07 ` Mike Galbraith
2001-06-08 18:30 ` Mike Galbraith
2001-06-09 12:31 ` Zlatko Calusic
2001-06-09 3:34 ` Rik van Riel
2001-06-08 16:51 ` Mike Galbraith
2001-06-08 19:09 ` Tobias Ringstrom
2001-06-09 4:36 ` Mike Galbraith
2001-06-06 11:16 ` Daniel Phillips
2001-06-06 15:28 ` Richard Gooch
2001-06-06 15:42 ` Christian Bornträger
2001-06-06 15:57 ` Requirement: swap = RAM x 2.5 ?? Jeff Garzik
2001-06-06 16:12 ` Richard Gooch
2001-06-06 16:15 ` Jeff Garzik
2001-06-06 16:19 ` Richard Gooch
2001-06-06 16:53 ` Mike Galbraith
2001-06-06 17:05 ` Greg Hennessy
2001-06-06 18:42 ` Eric W. Biederman
2001-06-07 1:29 ` Jan Harkes
2001-06-06 17:14 ` Break 2.4 VM in five easy steps Ben Greear
2001-06-06 12:07 ` Jonathan Morton
2001-06-06 13:58 ` Gerhard Mack
2001-06-08 4:56 ` C. Martins
2001-06-06 14:41 ` Derek Glidden
2001-06-06 20:29 ` José Luis Domingo López
2001-06-06 14:16 ` Disconnect
[not found] ` <3B1DEAC7.43DEFA1C@idb.hist.no>
2001-06-06 14:51 ` Derek Glidden
2001-06-06 21:34 ` Alan Cox
2001-06-09 8:07 ` Rik van Riel
2001-06-07 7:23 ` Helge Hafting
2001-06-07 16:56 ` Eric W. Biederman
2001-06-07 20:24 ` José Luis Domingo López
2001-06-06 4:03 ` Jeffrey W. Baker
2001-06-06 13:32 ` Eric W. Biederman
2001-06-06 14:41 ` Marc Heckmann
2001-06-06 14:51 ` Hugh Dickins
2001-06-06 13:08 ` Eric W. Biederman
2001-06-06 16:48 ` Jeffrey W. Baker
[not found] ` <m2lmn61ceb.fsf@sympatico.ca>
2001-06-06 14:37 ` Derek Glidden
2001-06-07 0:34 ` Mike A. Harris
2001-06-07 3:13 ` Miles Lane
2001-06-07 15:49 ` Derek Glidden
2001-06-07 19:06 ` Miles Lane
2001-06-09 5:57 ` Mike A. Harris
2001-06-06 18:59 ` Mike Galbraith
2001-06-06 19:39 ` Derek Glidden
2001-06-06 20:47 ` Linus Torvalds
2001-06-07 7:42 ` Eric W. Biederman
2001-06-07 8:11 ` Linus Torvalds
2001-06-07 8:54 ` Eric W. Biederman
2001-06-06 21:39 ` android
2001-06-06 22:08 ` Jonathan Morton
2001-06-06 22:27 ` android
2001-06-06 22:33 ` Antoine
2001-06-06 22:38 ` Robert Love
2001-06-06 22:40 ` Jonathan Morton
-- strict thread matches above, loose matches on Subject: below --
2001-06-06 15:31 Derek Glidden
2001-06-06 15:46 ` John Alvord
2001-06-06 15:58 ` Derek Glidden
2001-06-06 18:27 ` Eric W. Biederman
2001-06-06 18:47 ` Derek Glidden
2001-06-06 18:52 ` Eric W. Biederman
2001-06-06 19:06 ` Mike Galbraith
2001-06-06 19:28 ` Eric W. Biederman
2001-06-07 4:32 ` Mike Galbraith
2001-06-07 6:38 ` Eric W. Biederman
2001-06-07 7:28 ` Mike Galbraith
2001-06-07 7:59 ` Eric W. Biederman
2001-06-07 8:15 ` Mike Galbraith
2001-06-07 17:10 ` Marcelo Tosatti
2001-06-06 19:28 ` Derek Glidden
2001-06-09 7:55 ` Rik van Riel
2001-06-06 20:43 ` Daniel Phillips
2001-06-06 21:57 ` LA Walsh
2001-06-07 6:35 ` Eric W. Biederman
2001-06-07 15:25 ` LA Walsh
2001-06-07 16:42 ` Eric W. Biederman
2001-06-07 20:47 ` LA Walsh
2001-06-08 19:38 ` Pavel Machek
2001-06-09 7:34 ` Rik van Riel
2001-06-06 21:30 ` Alan Cox
2001-06-06 21:57 ` Derek Glidden
2001-06-09 8:09 ` Rik van Riel
2001-06-07 10:46 Bernd Jendrissek
[not found] ` <20010607153835.T14203@jessica>
2001-06-08 7:37 ` Bernd Jendrissek
2001-06-08 19:32 ` Pavel Machek
2001-06-11 12:06 ` Maciej Zenczykowski
2001-06-11 19:04 ` Rik van Riel
2001-06-12 7:46 ` Bernd Jendrissek
2001-06-07 14:22 Bulent Abali
2001-06-07 15:38 ` Mike Galbraith
2001-06-10 22:04 Rob Landley
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