Received: from localhost (maia-4.hub.org [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 8F2C79FB88A for ; Fri, 25 May 2007 11:10:31 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 84593-03-6 for ; Fri, 25 May 2007 11:10:25 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from lists.commandprompt.com (host-254.commandprompt.net [207.173.203.254]) by postgresql.org (Postfix) with ESMTP id 504199FBFB2 for ; Fri, 25 May 2007 11:10:25 -0300 (ADT) Received: from perhan.alvh.no-ip.org (201-221-217-243.bk12-dsl.surnet.cl [201.221.217.243]) (authenticated bits=0) by lists.commandprompt.com (8.13.7/8.13.6) with ESMTP id l4PEAGkk010313; Fri, 25 May 2007 07:10:16 -0700 Received: by perhan.alvh.no-ip.org (Postfix, from userid 1000) id 825E232A14; Fri, 25 May 2007 10:10:13 -0400 (CLT) Date: Fri, 25 May 2007 10:10:13 -0400 From: Alvaro Herrera To: "Peter T. Breuer" Cc: Richard Huxton , pgsql-performance@postgresql.org Subject: Re: general PG network slowness (possible cure) (repost) Message-ID: <20070525141013.GC4239@alvh.no-ip.org> References: <4656EA22.4020801@archonet.com> <200705251402.l4PE2LN01473@inv.it.uc3m.es> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <200705251402.l4PE2LN01473@inv.it.uc3m.es> User-Agent: Mutt/1.5.13 (2006-08-11) X-Virus-Scanned: ClamAV version 0.88.5, clamav-milter version 0.88.5 on projects.commandprompt.com X-Virus-Status: Clean X-Greylist: Sender succeded SMTP AUTH authentication, not delayed by milter-greylist-1.6 (lists.commandprompt.com [192.168.2.159]); Fri, 25 May 2007 07:10:17 -0700 (PDT) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200705/508 X-Sequence-Number: 24898 Peter T. Breuer escribió: > I really think it would be worthwhile getting some developer to tell me > where the network send is done in PG. See src/backend/libpq/pqcomm.c (particularly internal_flush()). -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.