X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 05FD49DCBAE for ; Fri, 16 Dec 2005 16:26:53 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 33771-09 for ; Fri, 16 Dec 2005 16:26:54 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from alvh.no-ip.org (201-221-201-24.bk11-dsl.surnet.cl [201.221.201.24]) by postgresql.org (Postfix) with ESMTP id CC9FF9DC880 for ; Fri, 16 Dec 2005 16:26:51 -0400 (AST) Received: by alvh.no-ip.org (Postfix, from userid 1000) id 8D6F7C2DC71; Fri, 16 Dec 2005 17:26:55 -0300 (CLST) Date: Fri, 16 Dec 2005 17:26:55 -0300 From: Alvaro Herrera To: Chris Hoover Cc: pgsql-performance@postgresql.org Subject: Re: 8.1 - pg_autovacuum question Message-ID: <20051216202655.GF27602@surnet.cl> Mail-Followup-To: Chris Hoover , pgsql-performance@postgresql.org References: <1d219a6f0512161140o2aad4256lf8e33fe65871f5a0@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1d219a6f0512161140o2aad4256lf8e33fe65871f5a0@mail.gmail.com> User-Agent: Mutt/1.5.11 X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=1.472 required=5 tests=[AWL=-0.447, DNS_FROM_RFC_ABUSE=0.479, DNS_FROM_RFC_POST=1.44] X-Spam-Score: 1.472 X-Spam-Level: * X-Archive-Number: 200512/405 X-Sequence-Number: 16226 Chris Hoover wrote: > In PostgreSQL 8.1, is the pg_autovacuum daemon affected by the > vacuum_cost_* variables? I need to make sure that if we turn > autovacuuming on when we upgrade to 8.1, we don't cause any i/o > issues. What pg_autovacuum daemon? The contrib one? I don't know. The integrated one? Yes it is; and you can set autovacuum-specific values in postgresql.conf and table-specific values (used for autovacuum only) in pg_autovacuum. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.