Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1X0JN8-0003RT-H1 for pgsql-performance@arkaria.postgresql.org; Thu, 26 Jun 2014 23:46:30 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1X0JN7-0001Be-OK for pgsql-performance@arkaria.postgresql.org; Thu, 26 Jun 2014 23:46:29 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1X0JN5-0001BM-H3 for pgsql-performance@postgresql.org; Thu, 26 Jun 2014 23:46:27 +0000 Received: from [2404:130:0:10::40:2] (helo=mail.catalyst.net.nz) by makus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1X0JN0-00013H-Bo for pgsql-performance@postgresql.org; Thu, 26 Jun 2014 23:46:24 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.catalyst.net.nz (Postfix) with ESMTP id 6AAD5324EE for ; Fri, 27 Jun 2014 11:46:17 +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 iSA779IwBKzA for ; Fri, 27 Jun 2014 11:46:06 +1200 (NZST) Received: from [IPv6:2404:130:0:1000:8849:d1a1:4e82:439d] (unknown [IPv6:2404:130:0:1000:8849:d1a1:4e82:439d]) (Authenticated sender: mark.kirkwood) by mail.catalyst.net.nz (Postfix) with ESMTPSA id ECAE63253E for ; Fri, 27 Jun 2014 11:46:03 +1200 (NZST) Message-ID: <53ACB190.2030206@catalyst.net.nz> Date: Fri, 27 Jun 2014 11:49:36 +1200 From: Mark Kirkwood User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: "pgsql-performance@postgresql.org" Subject: 60 core performance with 9.3 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2404:130:0:10::40:2 (failed) X-Pg-Spam-Score: 1.6 (+) 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 I have a nice toy to play with: Dell R920 with 60 cores and 1TB ram [1]. The context is the current machine in use by the customer is a 32 core one, and due to growth we are looking at something larger (hence 60 cores). Some initial tests show similar pgbench read only performance to what Robert found here http://rhaas.blogspot.co.nz/2012/04/did-i-say-32-cores-how-about-64.html (actually a bit quicker around 400000 tps). However doing a mixed read-write workload is getting results the same or only marginally quicker than the 32 core machine - particularly at higher number of clients (e.g 200 - 500). I have yet to break out the perf toolset, but I'm wondering if any folk has compared 32 and 60 (or 64) core read write pgbench performance? regards Mark [1] Details: 4x E7-4890 15 cores each. 1 TB ram 16x Toshiba PX02SS SATA SSD 4x Samsung NVMe XS1715 PCIe SSD Ubuntu 14.04 (Linux 3.13) -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance