I've been running a development copy of Moodle on my desktop PC for a while now, without any huge performance issues.
However, we've just gone down the live installation route, and Moodle is running much slower on better hardware. I am certain that it's down to the configuration/setup of the database layer (ODBTP uses 50% CPU), but I thought I'd run it past everyone here first.
Dual Xeon 3.2Ghz
I am sure it's a case of dropping Zend for APC, and also looking at FreeTDS instead of ODBTP. But if anyone has had similar issues, it would be greatly appreciated.