Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 7A97565018B for ; Sun, 17 Aug 2008 19:49:30 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 32960-05 for ; Sun, 17 Aug 2008 19:49:22 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from m.wordtothewise.com (fruitbat.wordtothewise.com [208.187.80.135]) by postgresql.org (Postfix) with ESMTP id EDC5265018C for ; Sun, 17 Aug 2008 19:49:26 -0300 (ADT) Received: from platter.wordtothewise.com (184.wordtothewise.com [208.187.80.184]) by m.wordtothewise.com (Postfix) with ESMTP id 3A0608010C for ; Sun, 17 Aug 2008 15:49:24 -0700 (PDT) Message-Id: From: Steve Atkins To: PostgreSQL Developers In-Reply-To: Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v926) Subject: Re: Overhauling GUCS Date: Sun, 17 Aug 2008 15:49:24 -0700 References: <7473.1212625397@sss.pgh.pa.us> <200807161530.m6GFUNY28751@momjian.us> <407fa4640808130738s3537ca45j22322a5eb70f9173@mail.gmail.com> X-Mailer: Apple Mail (2.926) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200808/699 X-Sequence-Number: 122453 On Aug 17, 2008, at 1:48 PM, Greg Smith wrote: > On Wed, 13 Aug 2008, Michael Nacos wrote: > >> Hi there... Configuration autotuning is something I am really >> interested in. >> I have seen this page: http://wiki.postgresql.org/wiki/ >> GUCS_Overhaul and >> a couple of emails mentioning this, so I wanted to ask is someone >> already >> on it? If yes, I'd like to contribute. > > Good time to give a status report on what's been going on with all > this. > > With some help I just finished off an answer to problem #1 there > recently, "Most people have no idea how to set these". There was > some concern here that work was being done on config tools without a > clear vision of what was going to be tuned. See http://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server > for an intro on how to set the 18 most important parameters (+7 > logging parameters) based on the best information I'm aware of. > > Circa June, Steve Atkins was looking into writing a C++/Qt GUI > tuning interface application, with the idea that somebody else would > figure out the actual smarts to the tuning effort. Don't know where > that's at. First pass is done. Needs a little cleanup before sharing. I spent a fair while down OS-specific-hardware-queries rathole, but I'm better now. Cheers, Steve