Re: Quad Xeon vs. Dual Itanium
От | Christopher Browne |
---|---|
Тема | Re: Quad Xeon vs. Dual Itanium |
Дата | |
Msg-id | m38yj621v0.fsf@wolfe.cbbrowne.com обсуждение исходный текст |
Ответ на | Re: Quad Xeon vs. Dual Itanium ("scott.marlowe" <scott.marlowe@ihs.com>) |
Список | pgsql-general |
Martha Stewart called it a Good Thing when ajs@crankycanuck.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... -- If this was helpful, <http://svcs.affero.net/rm.php?r=cbbrowne> rate me http://www.ntlug.org/~cbbrowne/emacs.html "[In 'Doctor' mode], I spent a good ten minutes telling Emacs what I thought of it. (The response was, 'Perhaps you could try to be less abusive.')" -- Matt Welsh
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