X-Original-To: pgsql-performance-postgresql.org@postgresql.org Received: from localhost (wm.hub.org [200.46.204.128]) by postgresql.org (Postfix) with ESMTP id E079D9FB2DA for ; Thu, 10 Aug 2006 08:07:01 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.128]) (amavisd-new, port 10024) with ESMTP id 77374-08 for ; Thu, 10 Aug 2006 11:06:57 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mail.logix-tt.com (mail.logix-tt.com [212.211.145.186]) by postgresql.org (Postfix) with ESMTP id B750B9FB2AB for ; Thu, 10 Aug 2006 08:06:57 -0300 (ADT) Received: from kingfisher.intern.logix-tt.com (p549D2020.dip0.t-ipconnect.de [84.157.32.32]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.logix-tt.com (Postfix) with ESMTP id 499C2656BE; Thu, 10 Aug 2006 13:08:52 +0200 (CEST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by kingfisher.intern.logix-tt.com (Postfix) with ESMTP id EF3AE18817942; Thu, 10 Aug 2006 13:07:08 +0200 (CEST) Message-ID: <44DB135C.8080705@logix-tt.com> Date: Thu, 10 Aug 2006 13:07:08 +0200 From: Markus Schaber Organization: Logical Tracking and Tracing International AG, Switzerland User-Agent: Thunderbird 1.5.0.4 (X11/20060713) MIME-Version: 1.0 To: pgsql-performance@postgresql.org Cc: Carl Youngblood Subject: Re: Beginner optimization questions, esp. regarding Tsearch2 References: <44DAFB2B.4070307@archonet.com> In-Reply-To: <44DAFB2B.4070307@archonet.com> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.135 tagged_above=0 required=5 tests=FORGED_RCVD_HELO X-Spam-Level: X-Archive-Number: 200608/182 X-Sequence-Number: 20367 Hi, Richard and Carl, Richard Huxton wrote: > Carl Youngblood wrote: >> - I noticed that there are six different postmaster daemons running. >> Only one of them is taking up a lot of RAM (1076m virtual and 584m >> resident). The second one is using 181m resident while the others are >> less than 20m each. Is it normal to have multiple postmaster >> processes? > > You should have one master backend process and one per connection. PG is > a classic multi-process designed server. There may be some additional background processes, such as the background writer, stats collector or autovacuum, depending on your version and configuration. HTH, Markus -- Markus Schaber | Logical Tracking&Tracing International AG Dipl. Inf. | Software Development GIS Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org