[Mailman-Users] Nailing Down High CPU

[Hunter Hillegas]

I am trying to pinpoint the high CPU utilization on my server when sending
to a large announcement list (35,000 members).

When we send out an email, the 'python2' process eats up 80-90% of the CPU
time.

Some info:

Red Hat EL 2.1 on dual AMD.
We ARE running a local caching nameserver.
Mailman 2.1.5
Sendmail-8.11.6-28.72 (Red Hat supplied RPM)

SMTP_MAC_RCPTS = 10 (is this a good value??? I have no idea.)
QRUNNER_LOCK_LIFETIME = hours(20)
QRUNNER_PROCESS_LIFETIME = minutes(120)
QRUNNER_MAX_MESSAGES = 50000

To be honest, I don't really know what the impact of all of those settings
are. The list is 'general purpose', in that users are subscribed from many
domains, with a large bulk being AOL, MSN, Yahoo, and Hotmail.

I've read through the FAQ entries 4.11 and 4.12. The latter went over our
heads a bit. We are not running with full customization.

If there is something seriously amiss with our configuration, please give me
a shout!

Thanks,
Hunter