Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1XKPCK-0002At-7H for pgsql-performance@arkaria.postgresql.org; Thu, 21 Aug 2014 10:02:24 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1XKPCJ-00074l-9w for pgsql-performance@arkaria.postgresql.org; Thu, 21 Aug 2014 10:02:23 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1XKPCI-00074e-6p for pgsql-performance@postgresql.org; Thu, 21 Aug 2014 10:02:22 +0000 Received: from mail.catalyst.net.nz ([2404:130:0:10::40:0]) by magus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1XKPC7-0003O7-Tf for pgsql-performance@postgresql.org; Thu, 21 Aug 2014 10:02:20 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.catalyst.net.nz (Postfix) with ESMTP id E922D32722; Thu, 21 Aug 2014 22:02:03 +1200 (NZST) X-Virus-Scanned: Debian amavisd-new at catalyst.net.nz Received: from mail.catalyst.net.nz ([127.0.0.1]) by localhost (bertrand.catalyst.net.nz [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gmBKm7fv8GfU; Thu, 21 Aug 2014 22:02:03 +1200 (NZST) Received: from [192.168.1.64] (122-62-5-20.jetstream.xtra.co.nz [122.62.5.20]) (Authenticated sender: mark.kirkwood) by mail.catalyst.net.nz (Postfix) with ESMTPSA id 545FE326EE; Thu, 21 Aug 2014 22:02:03 +1200 (NZST) Message-ID: <53F5C39B.30906@catalyst.net.nz> Date: Thu, 21 Aug 2014 22:02:03 +1200 From: Mark Kirkwood User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Josh Berkus , pgsql-performance@postgresql.org CC: "Graeme B. Bell" Subject: Re: Turn off Hyperthreading! WAS: 60 core performance with 9.3 References: <53ACB190.2030206@catalyst.net.nz> <53ECFD75.3060408@agliodbs.com> <53ED371D.109@catalyst.net.nz> <53F4F36E.6050003@agliodbs.com> <53F52BE6.6080006@catalyst.net.nz> In-Reply-To: <53F52BE6.6080006@catalyst.net.nz> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -2.6 (--) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-performance Precedence: bulk Sender: pgsql-performance-owner@postgresql.org On 21/08/14 11:14, Mark Kirkwood wrote: > > You didn't mention what > cpu this is for (or how many sockets etc), would be useful to know. > Just to clarify - while you mentioned that the production system was 40 cores, it wasn't immediately obvious that the same system was the source of the measurements you posted...sorry if I'm being a mixture of pedantic and dense - just trying to make sure it is clear what systems/cpus etc we are talking about (with this in mind it never hurts to quote cpu and mobo model numbers)! Cheers Mark -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance