spamassassin slow to process messages

[Daniel Bye]

On Tue, Jul 08, 2003 at 09:08:37AM +1000, Andrew Thomson wrote:
> I'm looking for some suggestions as to why my spamassassin is so slow!
> 
> Installed from ports.
> 
> Details:
> 
> p5-Mail-SpamAssassin-2.55
> 5.0-RELEASE-p7
> 
> I'm running spamd and using spamc/procmail to pass the messages to
> spamd.
> 
> I was reading the following,
> 
> http://spamassassin.rediris.es/dist/spamd/README.spamd
> 
> and it was talking with figures like:
> 
> "Well, on my 400MHz K6-2 mail server, spamassassin process a 11689 byte
> message in about 3.36 seconds, spamc/spamd processes the same message in
> about 0.86 seconds, or about 4 times faster."
> 
> I've got a CPU: Pentium III/Pentium III Xeon/Celeron (930.32-MHz
> 686-class CPU) and I'm seeing performance like,
> 
> Jul  8 08:25:11 athomson spamd[52016]: clean message (0.4/5.0) for
> ajt:1001 in 10.2 seconds, 2132 bytes. 
> Jul  8 08:25:27 athomson spamd[52031]: clean message (0.4/5.0) for
> ajt:1001 in 10.2 seconds, 2092 bytes. 
> Jul  8 08:30:12 athomson spamd[52074]: identified spam (16.0/5.0) for
> ajt:1001 in 10.3 seconds, 3158 bytes. 
> Jul  8 08:30:28 athomson spamd[52093]: clean message (-2.1/5.0) for
> ajt:1001 in 10.2 seconds, 2847 bytes. 
> Jul  8 08:30:44 athomson spamd[52100]: clean message (0.4/5.0) for
> ajt:1001 in 10.2 seconds, 2133 bytes. 
> 
> Much smaller messages, taking much longer to process!!

Could be mx timeouts, DNS timeouts, rbl timeouts, dcc/razor/pyzor
timeouts...

In your global SpamAssassin config, try setting a value for timelog_path -
this will cause spamd to log what it's doing, and where it spent most time
doing it.  Check perldoc Mail::SpamAssassin::Conf.

You might also try turning on debugging (modify /usr/local/etc/rc.d/spamd.sh
so that spamd is called with the `-D' option, then restart spamd).  You will
then get lots of debugging in /var/log/mail.

HTH

Dan

-- 
Daniel Bye

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