> So while he surely should not go back to 40, it seems there's another
> factor involved here that we've not recognized yet.

I'd agree.  Actually, the first thing I'd do, were it my machine, is reboot it 
and run memtest86 overnight.    CPU thrashing like that may indicate bad RAM.

If the RAM checks out, I'd like to see the EXPLAIN ANALYZE for some of the 
longest-running queries, and for those INSERTS.

Also, is the new machine running Software RAID?

Josh Berkus
Aglio Database Solutions
San Francisco

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