Re: xeon processors - Mailing list pgsql-hackers

From Scott Marlowe
Subject Re: xeon processors
Date
Msg-id 1088299919.3738.21.camel@localhost.localdomain
Whole thread Raw
In response to xeon processors  (Jaime Casanova <systemguards@yahoo.com>)
Responses Re: xeon processors  (Alvaro Herrera <alvherre@dcc.uchile.cl>)
List pgsql-hackers
On Fri, 2004-06-25 at 14:13, Jaime Casanova wrote:
> Hi all,
>  
> Can anyone tell me if postgresql has problems with xeon processors? 
> If so, there is any fix or project of fix it? 

To PostgreSQL, there's no difference between a dual CPU machine with no
hyperthreading, and a single CPU machine with hyperthreading.

HOWEVER, there have been some issues with certain Operating Systems
running slower with hyperthreading enabled than without it.  Late model
Linux kernels (2.6) seem to have gotten enough logic into the scheduler
to get good performance on a hyperthreaded system.



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