Subject: Re: 2.0beta performance
To: Jukka Marin <firstname.lastname@example.org>
From: Simon Burge <email@example.com>
Date: 10/27/2004 20:27:52
SODA Noriyuki wrote:
> >>>>> On Wed, 27 Oct 2004 13:10:19 +0300,
> Jukka Marin <firstname.lastname@example.org> said:
> > My desktop machine (AMD Athlon XP 2600+ with 1 GB RAM) has been up for 44
> > days now (ever since I stopped using gimp which causes a softdep panic).
> > The more time passes, the slower the system becomes. At the moment, almost
> > everything I do causes massive paging which freezes everything (mp3 play,
> > mouse pointer, shells etc.). The freeze lasts 5 to 10 seconds and during
> > this time, the machine appears to get nothing useful done.
> > I'm pretty sure a reboot would "fix" the problem, but before that, is there
> > anything I should check to see what causes this problem? I didn't see this
> > under 1.6, so it might be connected to the new buffer cache system or some
> > such.
> Does the kernel contain the following fix?
> (i.e. src/sys/uvm/uvm_anon.c revision 18.104.22.168)
> There was similar problem (discussed in "Bad response" thread in
> current-users on September), and it's fixed by this.
As a quick check, try this command:
vmstat -s | egrep 'managed|anonymous|cached' | grep -v scanned
If you see "anonymous pages" greater than "pages managed" then it's a
symptom of the bug. Upgrade to a newer 2.0 branch kernel and you will
be _much_ happier. I am :-)
Simon Burge <email@example.com>
NetBSD Support and Service: http://www.wasabisystems.com/