Re: Hyperthreading (was: Two identical systems, radically different performance)

From: Shaun Thomas <sthomas(at)optionshouse(dot)com>
To: Craig James <cjames(at)emolecules(dot)com>
Cc: <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Hyperthreading (was: Two identical systems, radically different performance)
Date: 2012-10-09 20:56:25
Message-ID: 50748F79.7070402@optionshouse.com
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On 10/09/2012 03:12 PM, Craig James wrote:

> ~3200 TPS max with hyperthreading
> ~9000 TPS max without hyprethreading

That's really odd. We got almost the opposite effect on our X5645's.

Also, there's no way your RAID is sustaining 9000TPS. Something here
sounds fishy.

--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604
312-444-8534
sthomas(at)optionshouse(dot)com

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