| From: | Christopher Browne <cbbrowne(at)acm(dot)org> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Quad Xeon vs. Dual Itanium |
| Date: | 2004-02-13 19:52:51 |
| Message-ID: | m38yj621v0.fsf@wolfe.cbbrowne.com |
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| Lists: | pgsql-general |
Martha Stewart called it a Good Thing when ajs(at)crankycanuck(dot)ca (Andrew Sullivan) wrote:
> On Fri, Feb 13, 2004 at 12:19:39PM -0500, Bruce Momjian wrote:
>> 64-bits isn't faster than 32, and can be slower because of the longer
>> pointer length, decreasing cache performance. The major advantage to
>> 64-bits is accessing more the 4gb of RAM.
>
> I note, however, that all the Sun experts say you should get your
> database applications optimised for 64 bits because you can ship
> around more data at a time. I have no clue what they're basing it
> on, though.
Well, presumably if you are copying values in and out of registers, it
is preferable to use 64 bit registers, thereby shifting around 64 bits
at a time. If that seems underwhelming, well, that might explain
Solaris...
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