Re: Hyperthreading or not?

From: "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>
To: Mendola Gaetano <mendola(at)bigfoot(dot)com>
Cc: <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Hyperthreading or not?
Date: 2003-07-16 15:07:02
Message-ID: Pine.LNX.4.33.0307160905310.29624-100000@css120.ihs.com
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On Wed, 16 Jul 2003, Mendola Gaetano wrote:

> Hi all,
> we are going to move our production postgres box ( on Linux )
> in a new machine, I'm wondering if I shall leave the Hyperthreading
> feature on or disable it.

The newer kernels are hyper-threading aware. No idea how much faster that
might make things for a postgresql server though.

> Anyone have experience on this?

Nope, but I will this fall.

> PS: Is really faster postgresql compiled with Intel compiler ?

Note that since most people use gcc, any problems caused by the Intel
compiler might take more time to get fixed.

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