Anthony, > I'm curious if anyone can back this up .... or debunk it. It's about > the polar opposite of everything I've heard from every other database > vendor for the past several years, and would be quite an eye-opener for > me. I generally see a 20% "free" gain in performance on 64-bit (Opteron, actually). Possibly EDB is still using ICC to compile, and ICC is bad at 64-bit? I have seen some applications which failed to gain any performance from 64-bit, but have never personally dealt with one which was slower. -- --Josh Josh Berkus PostgreSQL @ Sun San Francisco