> Since our current Postgres server, a quad Xeon system, finally can't keep
> up with our load anymore we're ready to take the next step.

There are a lot of reasons this could be happening; Quad Xeon is a problematic 
platform, the more so if you're on Dell hardware.

I've run PostgreSQL on 8-ways, and I know there are a few Sunfire users around 
the community (16-way).   There are definitely specific performance issues 
around specific query loads on multi-way systems; search this list archives 
for "Context Switch Bug".

I will echo others in saying that moving to Opteron on premium hardware should 
jump you at least 2x on performance, and it's a lot cheaper than DB2 or 

And, of course, if you really want help from this list, you'll post more 
specific problems.

Josh Berkus
Aglio Database Solutions
San Francisco

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