Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1UATxY-0007RP-Oq for pgsql-performance@arkaria.postgresql.org; Tue, 26 Feb 2013 23:29:20 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.72) (envelope-from ) id 1UATxY-0007GT-8y for pgsql-performance@arkaria.postgresql.org; Tue, 26 Feb 2013 23:29:20 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1UATxX-0007G1-0z for pgsql-performance@postgresql.org; Tue, 26 Feb 2013 23:29:19 +0000 Received: from outmail148150.authsmtp.net ([62.13.148.150]) by magus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1UATxU-00038q-Oi for pgsql-performance@postgresql.org; Tue, 26 Feb 2013 23:29:18 +0000 Received: from mail-c233.authsmtp.com (mail-c233.authsmtp.com [62.13.128.233]) by punt7.authsmtp.com (8.14.2/8.14.2/Kp) with ESMTP id r1QNTFSP089932 for ; Tue, 26 Feb 2013 23:29:15 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 r1QNTCMS094038 for ; Tue, 26 Feb 2013 23:29:13 GMT Message-ID: <512D4548.2000502@agliodbs.com> Date: Tue, 26 Feb 2013 15:29:12 -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: Server stalls, all CPU 100% system time References: <512A1EC3.4020806@darix.de> In-Reply-To: <512A1EC3.4020806@darix.de> X-Enigmail-Version: 1.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Server-Quench: 549794d2-806c-11e2-a49c-0025907707a1 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCdyZgscClZXSx8a IioLCC5HRQ8+YBZL BAkbIhBDJB8RWB5f NVxfJ1xYPXUEQkpF VCReGBUITgIzDi13 bRUnOFdCYEpPXBVo U0JLS1hTF0tvAQIC AAAfVhpsdgVZen1v ZQggXxElODcHFkZ0 Rk5XHSMOY2EubWQW V0lcIwFJeANMLQJE awV9SSIJaDYaZnpi Ql5rYG9pYjwGPh5Y EEk+FX8ob2ExOwt0 fB0YAzg1VVYZTiE3 NFhuI1oYVG0pDw1r aQNsEUkJKAMfD0VC HkRAaMA/ 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 Andre, Please see the related thread on this list, "High CPU usage / load average after upgrading to Ubuntu 12.04". You may be experiencing some of the same issues. General perspective seems to be that kernels 3.0 through 3.4 have serious performance issues. -- 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