Is there a setting for turning on and optimizing cache or is it behind the scenes? I need to "optimize" my WordPress installation as it is taking too much CPU - looking at a log file it shoulds a total of 39.8 seconds of CPU in a 30-second window. This is causing a CPU threshold to be reached on the hosting company (one of those recommeded in the "Hosting" section of this site).
I'm also getting the following error when I review the log:
[Sat Mar 25 12:22:52 2006] [debug] mod_rewrite.c(1643): [client x.x.x.x] mod_rewrite's internal redirect status: 0/10
(I replaced the IP with 'x.x.x.x')
Any help or ideas would be appreciated.