From: Mike Galbraith <mikeg@wen-online.de>
To: Tom Vier <tmv5@home.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.4.5-ac17
Date: Fri, 22 Jun 2001 09:06:42 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.33.0106220722450.535-100000@mikeg.weiden.de> (raw)
In-Reply-To: <20010621222557.A553@zero>
On Thu, 21 Jun 2001, Tom Vier wrote:
> i having some strange vm behavour with -ac17 that didn't happen with -ac14
> (i haven't tried 15 or 16). it starts swapping even when i have hundreds of
> megs of free ram. [...]
>
> vmstat:
> procs memory swap io system cpu
> r b w swpd free buff cache si so bi bo in cs us sy id
> 1 0 0 2864 408488 2488 67080 0 0 216 28 1052 470 83 4 13
Hi,
It's not actually swapping unless you see IO (si/so). It's allocating
swap space, but won't send pages out to disk unless there's demand. One
benefit of this early allocation is that idle pages will be identified
prior to demand, and will be moved out of the way sooner. Watch as
memory demand rises, and you should see these pages migrating to disk
and staying there.. buys you more working space.
-Mike
next prev parent reply other threads:[~2001-06-22 7:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-21 16:38 Linux 2.4.5-ac17 Alan Cox
2001-06-21 17:04 ` Rik van Riel
2001-06-21 17:47 ` Craig Schlenter
2001-06-21 18:06 ` Alan Cox
2001-06-21 20:08 ` Gary White (Network Administrator)
2001-06-21 19:51 ` Tom Vier
2001-06-21 21:11 ` Alan Cox
2001-06-22 2:25 ` Tom Vier
2001-06-22 7:06 ` Mike Galbraith [this message]
2001-06-22 22:40 ` Tom Vier
2001-06-22 22:06 ` Marcelo Tosatti
2001-06-23 3:46 ` Mike Galbraith
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=Pine.LNX.4.33.0106220722450.535-100000@mikeg.weiden.de \
--to=mikeg@wen-online.de \
--cc=linux-kernel@vger.kernel.org \
--cc=tmv5@home.com \
/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;
as well as URLs for NNTP newsgroup(s).