Re: Quad Xeon vs. Dual Itanium

Wouldn't you only care about 64-bit Postgres if you wanted to make
shared_buffers bigger than 4G?

Various other posters have commented about the sweet-spot for
shared_buffers being ~ 100-200M (or thereabouts).

So it seems to me that there is nothing to be gained using a 64-bit
binary with the current or previous Pg releases. However, with the new
cache replacement system being used in 7.5devel, the situation *may* be
different (wonder if anyone has tried this out yet?).

regards

Mark

Andrew Sullivan wrote:

>On Mon, Feb 09, 2004 at 12:46:58PM -0500, Christopher Browne wrote:
>
>
>>Lots of people have been running it on 64 bit systems for _years_ now.
>>The Digital Alpha architecture, for instance, was introduced in the
>>1992, and Sun UltraSPARC in 1995. PostgreSQL has been running well on
>>these sorts of systems for a lot of years now.
>>
>>
>
>But actually, there are problems with using postgres as a 64 bit
>application on Solaris. It works, and it's reliable, but I've never
>seen any evidence that it helps anything (and I've looked plenty).
>
>A
>
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>