> I already have fsync off. Short of buying more hardware -- which I will
> probably do anyways once I figure out whether I need more CPU, memory or
> disk -- what else can I do to max out the speed? Operation mix is about
> 50% select, 40% insert, 10% update.

Disk.   Multi-channel RAID is where it's at, and/or RAID with a great write 
cache enabled.  For really fast updates, I'd suggest 6-disk or even 8-disk 
RAID 1+0.

As soon as you have gobs of extra disk space, jack your checkpoint_buffers way 
up, like a couple of gigs.

Josh Berkus
Aglio Database Solutions
San Francisco

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