MailScanner load

Gordon Colyn gordon at
Tue Aug 15 19:36:26 IST 2006

I had the same problem with my box, maxed the load at about 5-6 doing 20k 
messages per day.  Just increased my ram to 4gb and have seen the load drop 
to between 0.50 and 1.50 max when looking at stats with mailscanner!  Now 
doing 25k and growing to 30k and the load is sitting at approx .75 to 1.5.


----- Original Message ----- 
From: "Jeremy Blonde" <JeremyBlonde at>
To: "MailScanner discussion" <mailscanner at>
Sent: Tuesday, August 15, 2006 8:26 PM
Subject: MailScanner load

I've been wanting to use Bayes for our mailscanner system, but I'm
wondering now if the overhead is worth it.  We have a new mailscanner
box running with Postfix (under Gentoo Linux) and it works pretty well,
we're filtering between 75-80% of our mail as spam.  The box however, is
hammered, it's running around 5-6 with spikes to 8-9.  I've just turned
off bayes and I'll see how the load is once it's processed all the back
logged messages.  We're averaging about 15,000-20,000 messages a day
(probably more once the school year starts).  Mailscanner is running on
an HP DL320, hyper-threaded proc, 1 GB of RAM, and raid 1 drives.

Is that normal for using bayes with mailscanner or do I need to tweak
some things?

(I'm already using tmpfs for a little bit of a speed up).

Jeremy Blonde
Instructional Technology - Server Support
Grant Joint Union School District
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