performance hints (6.2)

[Michael K. Smith - Adhost]

Hello Mark:

> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org [mailto:owner-freebsd-
> questions at freebsd.org] On Behalf Of Mark Messier
> Sent: Friday, August 17, 2007 1:00 PM
> To: FreeBSD Mailing List
> Subject: performance hints (6.2)
> 
> I've got a freebsd 6.2 system, dual 2Ghz 5130 cpu, 4g ram, with raid5
> Adaptec 2120s, running not much more than /usr/ports/mail/imap-uw
> and I'm having performance problems with only 20 IMAP users.
> 
> I'm not swapping.. cpu is mostly idle, so I figure it must be I/O
> performance.  Just to confirm, is that what the following show?
> 
> Thanks,
> -mark
> 
It looks like your disks are getting pretty busy.  What does a gstat
look like over time?

Mike