Performance question

[Andy Humberston]

> >Isolate where the slowdown is - ie disable SA and see what happens..
> >Reduce the number of messages scanned in MailScanner.conf.
> Check your
> >logs too..
>
> I ran some tests, here are the results:
>
> 1,300/10 min    virus:on        spam:on
> 1,500/10 min    virus:off       spam:on
> 6,300/10 min    virus:on        spam:off
>
> I examined the log, during these tests, there were no
> timeouts for SA or the virus engine. Everything is
> completeing, just slowly, despite there being plenty of
> system resources.
>

We seem to be experiencing exactly the same problem, searching
the web for performance related info for SA seems to advise the
best way to run it is through MailScanner.  I have just ran some
Tests on a dual pentium 1.4Ghz box with 1Gig RAM and achieved the
following:

2400/6 min      virus:off       spam:off
2400/7 min      virus:on        spam:off (sophos)
2400/20 min     virus:on        spam:on (razor off)
2400/24 min virus:on    spam:on (razor on)

This is on a machine with two U/SCSI 15,000rpm disks mirrored
(Hardware RAID).

It's a machine I've borrowed :)

Andy Humberston