Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1U68gj-00041O-Ve for pgsql-performance@arkaria.postgresql.org; Thu, 14 Feb 2013 23:58:02 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.72) (envelope-from ) id 1U68gj-0000O1-BM for pgsql-performance@arkaria.postgresql.org; Thu, 14 Feb 2013 23:58:01 +0000 Received: from makus.postgresql.org ([2001:4800:7903:4::125]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1U68gi-0000NJ-7j for pgsql-performance@postgresql.org; Thu, 14 Feb 2013 23:58:00 +0000 Received: from outmail148137.authsmtp.com ([62.13.148.137]) by makus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1U68ge-0003mj-Mj for pgsql-performance@postgresql.org; Thu, 14 Feb 2013 23:57:59 +0000 Received: from mail-c233.authsmtp.com (mail-c233.authsmtp.com [62.13.128.233]) by punt10.authsmtp.com (8.14.2/8.14.2/Kp) with ESMTP id r1ENvt4M043650 for ; Thu, 14 Feb 2013 23:57:55 GMT Received: from [172.47.23.103] (70-36-143-10.dsl.dynamic.sonic.net [70.36.143.10]) (authenticated bits=0) by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id r1ENvrLZ097485 for ; Thu, 14 Feb 2013 23:57:54 GMT Message-ID: <511D79FE.7060705@agliodbs.com> Date: Thu, 14 Feb 2013 15:57:50 -0800 From: Josh Berkus Organization: PostgreSQL Experts Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: High CPU usage / load average after upgrading to Ubuntu 12.04 References: <60B572D9298D944580F7D51195DD30804357FA4ABF@VMBX125.ihostexchange.net> , <60B572D9298D944580F7D51195DD30804357FA4B60@VMBX125.ihostexchange.net> <60B572D9298D944580F7D51195DD30804357FA4C11@VMBX125.ihostexchange.net> <511BE879.8080706@agliodbs.com> <511C2F10.3080409@agliodbs.com> <60B572D9298D944580F7D51195DD30804357FA4DE2@VMBX125.ihostexchange.net> <511D2F11.6040706@agliodbs.com> <60B572D9298D944580F7D51195DD308043580CAA0B@VMBX125.ihostexchange.net> In-Reply-To: <60B572D9298D944580F7D51195DD308043580CAA0B@VMBX125.ihostexchange.net> X-Enigmail-Version: 1.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Server-Quench: 5963958b-7702-11e2-a49c-0025907707a1 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCdyZgscClZXSx8a IioLCC5HRQ8+YBZL BAkbIhBDJB8RWB5f NVxfJ1xYPXUEQkpF VCReGBUITgIzDi10 bxUnOFdCYEpPXBVo U0JMRVhXEEtvAQIC AAAfVhpsdgVZen1v ZQggXwUlGgYGH0Z0 RUpcECMHYmRmJmUW VkNRcgsGbQRNfh1Y a1EqVm5cZWxUe3pg RVJiZ29uZWpWcTJv T1NFHmo/e2gsJBsJ DzADEjVnNnU4Dzgo JhMrYhlUGEEYPg07 L1Y7UF0VexYcFgBE V1xVDzVQK1gHSGI3 CktnV1MYDCA/CX4G REV0SgAA X-Authentic-SMTP: 61633136333939.1021:706 X-AuthFastPath: 0 (Was 255) X-AuthSMTP-Origin: 70.36.143.10/23 X-AuthVirus-Status: No virus detected - but ensure you scan with your own anti-virus system. 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 02/14/2013 12:41 PM, Dan Kogan wrote: > We used scale factor of 3600. > Yeah, maybe other people see similar load average, we were not sure. > However, we saw a clear difference right after the upgrade. > We are trying to determine whether it makes sense for us to go to 11.04 or maybe there is something here we are missing. Well, I'm seeing a higher system % on CPU than I expect (around 15% on each core), and a MUCH higher context-switch than I expect (up to 500K). Is that anything like you're seeing? -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance