Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1WWiTo-0001T8-NK for pgsql-performance@arkaria.postgresql.org; Sun, 06 Apr 2014 08:31:04 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1WWiTn-0007xn-9l for pgsql-performance@arkaria.postgresql.org; Sun, 06 Apr 2014 08:31:03 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1WWiTm-0007xg-H9 for pgsql-performance@postgresql.org; Sun, 06 Apr 2014 08:31:02 +0000 Received: from smtp-outbound-1.vmware.com ([208.91.2.12]) by magus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1WWiTd-0001z7-Hd for pgsql-performance@postgresql.org; Sun, 06 Apr 2014 08:31:00 +0000 Received: from sc9-mailhost2.vmware.com (sc9-mailhost2.vmware.com [10.113.161.72]) by smtp-outbound-1.vmware.com (Postfix) with ESMTP id 044AA28861; Sun, 6 Apr 2014 01:30:49 -0700 (PDT) Received: from zcs-prod-ext-mta-2.vmware.com (zcs-prod-ext-mta-2.vmware.com [10.113.62.224]) by sc9-mailhost2.vmware.com (Postfix) with ESMTP id 0064DB1225; Sun, 6 Apr 2014 01:30:49 -0700 (PDT) Received: from zcs-prod-ext-mta-2.vmware.com (localhost.localdomain [127.0.0.1]) by zcs-prod-ext-mta-2.vmware.com (Postfix) with ESMTP id B779FC0056; Sun, 6 Apr 2014 01:30:42 -0700 (PDT) Received: from [192.168.1.90] (zimbra-prod-ext-proxy-vip.vmware.com [10.113.63.87]) by zcs-prod-ext-mta-2.vmware.com (Postfix) with ESMTPSA; Sun, 6 Apr 2014 01:30:41 -0700 (PDT) Message-ID: <534110B6.8020509@vmware.com> Date: Sun, 06 Apr 2014 11:30:46 +0300 From: Heikki Linnakangas Organization: VMware User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131103 Icedove/17.0.10 MIME-Version: 1.0 To: Ryan Johnson CC: pgsql-performance@postgresql.org Subject: Re: SSI slows down over time References: <5340BB09.5010101@cs.utoronto.ca> In-Reply-To: <5340BB09.5010101@cs.utoronto.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -7.2 (-------) 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 04/06/2014 05:25 AM, Ryan Johnson wrote: > I've tried linux perf, but all it says is that lots of time is going to > LWLock (but callgraph tracing doesn't work in my not-bleeding-edge > kernel). Make sure you compile with the "-fno-omit-frame-pointer" flag. - Heikki -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance