A few questions I can't find in archive...

MailScanner mailscanner at SMITS.CO.UK
Fri Feb 27 22:23:30 GMT 2004

All the trimmings: tmpfs, caching DNS, local lookups.

We do have a large (20k) number of messages in the outbound queue.


-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
Behalf Of Raymond Dijkxhoorn
Posted At: 27 February 2004 22:07
Posted To: MailScanner
Conversation: A few questions I can't find in archive...
Subject: Re: A few questions I can't find in archive...


> Any (dis)advantages in HyperThreading? We're running a fairly busy 
> (72k
> msg/day) dual Xeon 2.4 2GB RAM with HT on RH9 / MS 4-26.7 / SA 2.63 / 
> Clam 0.65
> In top the MailScanner process continuously has near 100% of CPU 2. 
> The idle percentage hunts around between one of the virtual CPU's at 
> near 0% and the rest roughly equal. Sometimes all four are roughly 
> equal. Our CPU utilisation as showing in Mailscanner-MRTG (older 
> version) is higher than we would like it to be.

72K is not that many for a dual xeon, sounds strange. Are you using
tmpfs also ? Do you have a RBL lookups on a local server or all on the
remote RBL servers? Do you run a caching DNS on the box itself ?


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