How to find a slowdown?

[Jeff A. Earickson]

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Quick advice, run MailScanner in debug mode and see what happens.
I'll bet that it gets slow on DNS lookups.  It always helps to run
a caching DNS (stealth secondary) on your mail server.

Jeff Earickson
Colby College

On Wed, 6 Oct 2004, Jeremy Huber wrote:

> Date: Wed, 6 Oct 2004 10:32:54 -0600
> From: Jeremy Huber <JHuber at MICROSOURCE.COM>
> Reply-To: MailScanner mailing list <MAILSCANNER at JISCMAIL.AC.UK>
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: How to find a slowdown?
>
> I've got a case where our brand new server that I put MailScanner on is
> just CRAWLING.  Dual 2.4Ghz Xeon with 4GB RAM running Fedora Core 2, MS
> 4.33.3, and SA 2.63 (I've turned off the virus scanning temporarily).
> We only push somewhere around 50k messages a day through it, so I'm not
> sure why it's so slow.  It almost always has hundreds of messages in the
> inbound queue.  I tried turning on LOG_SPEED, and the spam scanning
> speed is usually around 600 bytes per second.  That seems insanely slow,
> but I didn't what's "good."  I've got SA using DCC and Pyzor as well as
> maybe 6 of the rulesets out of the rdj (one of which being the
> blacklist).  Am I just making SA do too much, and that's why it's so
> slow?
>
> Thanks for any help you guys can give!
>
> Jeremy
>
> --
> Jeremy Huber, SCSA, LCP
> jhuber at microsource.com
> Datacenter Engineer
> Microsource, Inc
>
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