Re: 64 Bit Compatibility - Mailing list pgsql-advocacy

From Bruce Momjian
Subject Re: 64 Bit Compatibility
Date
Msg-id 200307232253.h6NMru829921@candle.pha.pa.us
Whole thread Raw
In response to 64 Bit Compatibility  (Christopher Browne <cbbrowne@libertyrms.info>)
List pgsql-advocacy
Christopher Browne wrote:
> Then let's ask ourselves: "What use is 64 bit compatibility?"
>
> Answer:
>
> "... 64 bit support means database processes can access more than 2GB of
> physical memory, which is vital for supporting large enterprise
> databases and data warehousing applications."
>
> The problem with "only 32 bits" is that you can't make use of >2GB of
> RAM on a system.  (Well, on a 4GB IA-32 box, you could have PostgreSQL
> consume up to 2GB, and then see filesystem cacheing use the rest, but
> you still only have direct access to 2GB at a time...)

I belive 4gig is the limit for 32 bits.

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