Re: Turn off Hyperthreading! WAS: 60 core performance with 9.3

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>, Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>, "Graeme B(dot) Bell" <grb(at)skogoglandskap(dot)no>
Subject: Re: Turn off Hyperthreading! WAS: 60 core performance with 9.3
Date: 2014-08-21 22:51:20
Message-ID: 53F677E8.7010603@agliodbs.com
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On 08/21/2014 02:26 PM, Scott Marlowe wrote:
> I'm running almost the exact same setup in production as a spare. It
> has 4 of those CPUs, 256G RAM, and is currently set to use HT. Since
> it's a spare node I might be able to do some testing on it as well.
> It's running a 3.2 kernel right now. I could probably get a later
> model kernel on it even.

You know about the IO performance issues with 3.2, yes?

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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