recent performance problems?

[Glenn Johnson]

On Tue, May 06, 2003 at 10:22:20PM -0700, Doug Barton wrote:

> On Wed, 7 May 2003, W. Josephson wrote:
>
> > On Tue, May 06, 2003 at 09:40:19PM -0700, Doug Barton wrote:
> >
> > > On Wed, 7 May 2003, W. Josephson wrote:
> > >
> > > > On Tue, May 06, 2003 at 08:51:09PM -0700, Doug Barton wrote:
> > > >
> > > > > Do the recommendations in UPDATING help you guys at all?
> > > >
> > > > I'm not quite sure what you are after
> > >
> > > Did you actually read /usr/src/UPDATING?
> >
> > yes.  Do you actually care about having feedback on -CURRENT?
>
> Yes we do. That's why I asked. Which of the options suggested in
> UPDATING did you try, and what were the results?

In my case I have all of the debugging options off as per UPDATING.  I
think I have a system with a different twist though.  Here is the uname
output:

FreeBSD 5.1-BETA #2: Tue May  6 10:38:29 CDT 2003     root at node1.cluster.srrc.usda.gov:/usr/obj/usr/src/sys/CLUSTER-FW 

When I first boot the system up it is fine.  However, it slows down
after a period of time.  Within a few hours it is essentially unusable.
It does not seem to be a gradual slowdown but I do not know how to
quantify that.  I did find the following in /var/log/messages after the
most recent slowdown:

May  6 19:52:21 node1 kernel: swap_pager: indefinite wait buffer: device: twed0s1b, blkno: 408, size: 4096

The system had been up for about four and a half hours and the time
stamp above corresponds to when the slowdown occurred.  Now, I could be
having problems with the 3-Ware RAID card or this could be the same
thing that others are reporting.  Anyway, I thought I should share that
as it might provide a clue to someone.

-- 
Glenn Johnson
USDA, ARS, SRRC			 Phone: (504) 286-4252
New Orleans, LA 70124		e-mail: gjohnson at srrc.ars.usda.gov