Subject: Re: New IDE controller.
To: Richard Rauch <rauch@rice.edu>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-i386
Date: 02/24/2002 19:04:43
On Sat, Feb 23, 2002 at 10:03:58PM -0600, Richard Rauch wrote:
> Can you think of any reason why a filesystem would perform ``okay'' in
> single-user, but not under multiuser?
> 
> I tried removing everything (except sshd and wscons) from my rc.conf, and
> still the disk drive's performance is terrible when I finish booting to
> multiuser.
> 
> But, if I ``boot -s'' and manually mount filesystems, things are much more
> respectable---at least up until such time as I hit ^D to finish the boot
> to multiuser.  Then things seem to go right back to ``normal''.

Did you try to run benchmarks in both single-user and multiuser mode ?
Maybe there's something doing disk I/O at the end of multiuser boot (like
raid parity rewrite) ? Did you watch with 'systat vm' what the hardware
is doing ?

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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