William, > 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.
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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 ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
