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

From: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>
To: sthomas(at)optionshouse(dot)com
Cc: Craig James <cjames(at)emolecules(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Hyperthreading (was: Two identical systems, radically different performance)
Date: 2012-10-09 21:24:28
Message-ID: CAMkU=1yO32nvd9J96kpGxJJigfFFR=HP3m__8iFggP=F1=akcg@mail.gmail.com
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On Tue, Oct 9, 2012 at 1:56 PM, Shaun Thomas <sthomas(at)optionshouse(dot)com> wrote:
> 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.

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