Horton

Re: Performance problems on 4-way AMD Opteron 875 (dual

Dirk Lutzebäck <lutzeb@aeccom.com>

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From: Dirk Lutzebäck <lutzeb@aeccom.com>
To: Michael Stone <mstone+postgres@mathom.us>
Cc: pgsql-performance@postgresql.org, Sven Geisler <sgeisler@aeccom.com>
Date: 2005-08-05T12:56:23Z
Lists: pgsql-performance 
Michael Stone wrote:

> On Fri, Aug 05, 2005 at 01:11:31PM +0200, Dirk Lutzebäck wrote:
>
>> I will compile the latest PostgreSQL 8.1 snapshot for 32bit to 
>> evaluate the new shared buffer code from Tom.
>> I think, the 64bit is slow because my queries are CPU intensive.
>
>
> Have you actually tried it or are you guessing? If you're guessing, then
> compile it as a 64 bit binary and benchmark that.
>
> Mike Stone

We tried it. 64bit 8.1dev was slower than 32bit 8.0.3.

Dirk