All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Jan Kundrát" <jkt@gentoo.org>
To: Rik van Riel <riel@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: kswapd high CPU usage with no swap
Date: Tue, 25 Sep 2007 12:13:41 +0200	[thread overview]
Message-ID: <46F8DF55.2030905@gentoo.org> (raw)
In-Reply-To: <20070924223444.62f0622d@bree.surriel.com>

[-- Attachment #1: Type: text/plain, Size: 694 bytes --]

Rik van Riel wrote:
> How much memory did you have in "cached" when you looked
> with top (and no swap enabled) ?

Hi Rik,
it was pretty low number (several thousands, or maybe tens of thousands).

In the meanwhile, I've come across your patch [1] ("prevent kswapd from
freeing excessive amounts of lowmem") and applied it locally. I'll see
if it fixes my problem, but at a first glance, it seems that it might
actually slow other things down -- when I switch windows, konqueror's
screen redrawing seems to be pretty slow and I can see it progressing
from top to bottom...

[1] http://lkml.org/lkml/2007/9/5/289

Cheers,
-jkt

-- 
cd /local/pub && more beer > /dev/mouth


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 252 bytes --]

  reply	other threads:[~2007-09-25 10:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-25  0:13 kswapd high CPU usage with no swap Jan Kundrát
2007-09-25  2:34 ` Rik van Riel
2007-09-25 10:13   ` Jan Kundrát [this message]
2007-09-26  1:31     ` Rik van Riel
2007-09-26  7:27       ` Jan Kundrát
2007-09-26 15:25         ` Rik van Riel
2007-09-26 22:37           ` Jan Kundrát

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=46F8DF55.2030905@gentoo.org \
    --to=jkt@gentoo.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=riel@redhat.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.