James Moe wrote:
> John Gibson wrote:
> >
> > Assuming similar memory and disk sub-systems, I am considering a Quad
> > Xeon system vs. a Dual Itanium for PostgreSQL. I believe that the
> > PostgreSQL code is written for 32 bit and not optimized for the 64 bit
> > Itanium cpu. That makes me think that the Xeon system would be a better
> > choice.
> >
> The Itanic hasn't lived up to its marketing hype. The comparisons
> I've seen between it and a 32-bit CPU show performance differences
> primarily due to clock speeds. So far the only advantage of 64 bits is
> address space. And because they are new, itanics cost much more.
> So with 2 itanics you get a slight improvement. With 4 xeons you get
> about 1.7x improvement over your current setup.
Here is an interesting article about the Opteron/Itanium issue:
http://www.theinquirer.net/?article=14038
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Bruce Momjian | http://candle.pha.pa.us
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