public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: "Eric S. Raymond" <esr@thyrsus.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>, gars@lanm-pc.com
Subject: Re: Swap size for a machine with 2GB of memory
Date: Sun, 19 Aug 2001 17:15:58 -0400	[thread overview]
Message-ID: <20010819171558.A9057@thyrsus.com> (raw)
In-Reply-To: <20010819024233.A26916@thyrsus.com> <m11ym7ojvw.fsf@frodo.biederman.org>
In-Reply-To: <m11ym7ojvw.fsf@frodo.biederman.org>; from ebiederm@xmission.com on Sun, Aug 19, 2001 at 02:49:23PM -0600

Eric W. Biederman <ebiederm@xmission.com>:
> There is no magic formula for calculating the amount of swap space
> needed.  It really needs to be sized to the expected load on your box
> plus some.  If you seriously expect to be using swap,  have swapsize >
> memsize and figure the amount of virtual memory you have is swapsize.
> 
> With respect to swap partitions the current limit is about 64Gig.
> You can actually make a larger swap partition but the kernel on x86
> only uses 24 offset bits into that partition.  The 128MB partition
> existed but was removed long ago.

That's helpful, thanks.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Never trust a man who praises compassion while pointing a gun at you.

  reply	other threads:[~2001-08-19 21:12 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-08-19  6:42 Swap size for a machine with 2GB of memory Eric S. Raymond
2001-08-19  8:25 ` Andrzej Krzysztofowicz
2001-08-19  9:46 ` Ignacio Vazquez-Abrams
2001-08-19 16:15   ` Ingo Oeser
2001-08-19 14:08 ` Alan Cox
2001-08-19 16:48   ` Eric S. Raymond
2001-08-19 14:39 ` Steven Cole
2001-08-19 17:29 ` Luigi Genoni
2001-08-19 15:52   ` Steven Cole
2001-08-19 22:16     ` Luigi Genoni
2001-08-19 20:49 ` Eric W. Biederman
2001-08-19 21:15   ` Eric S. Raymond [this message]
2001-08-20  0:05   ` Kevin Krieser
2001-08-20 17:42     ` Eric W. Biederman
2001-08-20 23:09       ` Kevin Krieser
  -- strict thread matches above, loose matches on Subject: below --
2001-08-20  0:08 Andries.Brouwer
2001-08-21 23:14 ` Kurt Garloff
2001-08-24 12:45 ` Rogier Wolff

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20010819171558.A9057@thyrsus.com \
    --to=esr@thyrsus.com \
    --cc=ebiederm@xmission.com \
    --cc=gars@lanm-pc.com \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox