Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1Vu7XU-0001Dy-9y for pgsql-performance@arkaria.postgresql.org; Fri, 20 Dec 2013 21:23:20 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1Vu7XT-0007Gg-I7 for pgsql-performance@arkaria.postgresql.org; Fri, 20 Dec 2013 21:23:19 +0000 Received: from makus.postgresql.org ([2001:4800:7903:4::125]) by malur.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1Vu7XS-0007FW-8b for pgsql-performance@postgresql.org; Fri, 20 Dec 2013 21:23:18 +0000 Received: from mbx.knossos.net.nz ([202.160.48.10]) by makus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1Vu7XK-0005SX-3z for pgsql-performance@postgresql.org; Fri, 20 Dec 2013 21:23:17 +0000 Received: from [10.1.1.3] (60-234-150-59.bitstream.orcon.net.nz [60.234.150.59]) (authenticated bits=0) by mbx.knossos.net.nz (8.14.4/8.14.4) with ESMTP id rBKLMuTX014275 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sat, 21 Dec 2013 10:22:57 +1300 Message-ID: <52B4B459.2090407@archidevsys.co.nz> Date: Sat, 21 Dec 2013 10:19:21 +1300 From: Gavin Flower Organization: ArchiDevSys User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Shaun Thomas , Sev Zaslavsky , Sergey Konoplev CC: "pgsql-performance@postgresql.org" Subject: Re: slow query - will CLUSTER help? References: <52A9F2A2.4080901@gmail.com> <52B35CF9.9080402@gmail.com> <52B4574E.7040800@optionshouse.com> <52B468E9.8030902@gmail.com> <52B46C3B.20902@optionshouse.com> In-Reply-To: <52B46C3B.20902@optionshouse.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -1.9 (-) 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 21/12/13 05:11, Shaun Thomas wrote: [...] > . > > Of course, don't forget to buy modules in multiples of four, otherwise > you're not taking advantage of all the CPU's memory channels. :) > Note some processors have 3 (three) memory channels! And I know of some with 4 memory channels. So it is important to check your processor & mother board. The desktop I got when I joined a university on contract had 12GB about 2 years ago. Cheers, Gavin -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance