Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1X1Vf8-0006dK-Py for pgsql-performance@arkaria.postgresql.org; Mon, 30 Jun 2014 07:06:02 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1X1Vf7-0002ML-IO for pgsql-performance@arkaria.postgresql.org; Mon, 30 Jun 2014 07:06:01 +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 1X1Vf5-0002M9-9f for pgsql-performance@postgresql.org; Mon, 30 Jun 2014 07:05:59 +0000 Received: from smtp-outbound-2.vmware.com ([208.91.2.13]) by makus.postgresql.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1X1Vf0-0002Wc-IL for pgsql-performance@postgresql.org; Mon, 30 Jun 2014 07:05:56 +0000 Received: from sc9-mailhost1.vmware.com (sc9-mailhost1.vmware.com [10.113.161.71]) by smtp-outbound-2.vmware.com (Postfix) with ESMTP id A175B282AD; Mon, 30 Jun 2014 00:05:52 -0700 (PDT) Received: from EX13-CAS-011.vmware.com (EX13-CAS-011.vmware.com [10.113.191.63]) by sc9-mailhost1.vmware.com (Postfix) with ESMTP id 995BE19601; Mon, 30 Jun 2014 00:05:52 -0700 (PDT) Received: from EX13-MBX-024.vmware.com (10.113.191.44) by EX13-MBX-002.vmware.com (10.113.191.22) with Microsoft SMTP Server (TLS) id 15.0.775.38; Mon, 30 Jun 2014 00:05:52 -0700 Received: from [192.168.1.90] (10.113.160.246) by EX13-MBX-024.vmware.com (10.113.191.44) with Microsoft SMTP Server (TLS) id 15.0.775.38; Mon, 30 Jun 2014 00:05:51 -0700 Message-ID: <53B10C4C.8090701@vmware.com> Date: Mon, 30 Jun 2014 10:05:48 +0300 From: Heikki Linnakangas Organization: VMware User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.5.0 MIME-Version: 1.0 To: Soni M CC: Subject: Re: Postgres Replaying WAL slowly References: <53AFCEE3.4080009@vmware.com> In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.113.160.246] X-ClientProxiedBy: EX13-CAS-013.vmware.com (10.113.191.65) To EX13-MBX-024.vmware.com (10.113.191.44) X-Pg-Spam-Score: -6.9 (------) 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 06/29/2014 03:43 PM, Soni M wrote: > top and sar says 100% cpu usage of one core, no sign of I/O wait. Hmm, I wonder what it's doing then... If you have "perf" installed on the system, you can do "perf top" to get a quick overlook of where the CPU time is spent. - Heikki -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance