From: Mark Kirkwood <mark.kirkwood@catalyst.net.nz>
To: pgsql-performance@postgresql.org
Subject: Re: 60 core performance with 9.3
Date: Fri, 15 Aug 2014 10:24:29 +1200
Message-ID: <53ED371D.109@catalyst.net.nz> (raw)
In-Reply-To: <53ECFD75.3060408@agliodbs.com>
References: <53ACB190.2030206@catalyst.net.nz>
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<53ECFD75.3060408@agliodbs.com>
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On 15/08/14 06:18, Josh Berkus wrote:
> Mark,
>
> Is the 60-core machine using some of the Intel chips which have 20
> hyperthreaded virtual cores?
>
> If so, I've been seeing some performance issues on these processors.
> I'm currently doing a side-by-side hyperthreading on/off test.
>
Hi Josh,
The board has 4 sockets with E7-4890 v2 cpus. They have 15 cores/30
threads. We've running with hyperthreading off (noticed the usual
steep/sudden scaling dropoff with it on).
What model are your 20 cores cpus?
Cheers
Mark
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To: pgsql-performance@postgresql.org
Cc: mark.kirkwood@catalyst.net.nz
Subject: Re: 60 core performance with 9.3
In-Reply-To: <53ED371D.109@catalyst.net.nz>
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