Re: Dual Xeon + HW RAID question - Mailing list pgsql-performance

From Jord Tanner
Subject Re: Dual Xeon + HW RAID question
Date
Msg-id 1058896464.4339.46.camel@gecko
Whole thread Raw
In response to Re: Dual Xeon + HW RAID question  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: Dual Xeon + HW RAID question  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-performance
On Tue, 2003-07-22 at 10:39, Bruce Momjian wrote:
> But CPU affinity isn't realated to hyperthreading, as far as I know.
> CPU affinity tries to keep processes on the same cpu in case there is
> still valuable info in the cpu cache.
>

It is true that CPU affinity is designed to prevent the dump of valuable
CPU cache. My thought is that if you are trying to prevent CPU
contention, you could use CPU affinity to prevent 2 postmaster processes
from running simultaneously on the same die. Am I out to lunch here?
I've not worked with CPU affinity before, so I'm not familiar with the
intimate details.


--
Jord Tanner <jord@indygecko.com>


pgsql-performance by date:

Previous
From: "Mendola Gaetano"
Date:
Subject: Re: Wrong plan or what ?
Next
From: "Mendola Gaetano"
Date:
Subject: Re: Wrong plan or what ?