Received: from maia.hub.org (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id 33BD66334CC for ; Thu, 10 Dec 2009 17:57:11 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 40281-04 for ; Thu, 10 Dec 2009 21:57:03 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail.anarazel.de (mail.anarazel.de [217.115.131.40]) by mail.postgresql.org (Postfix) with ESMTP id C136A63220C for ; Thu, 10 Dec 2009 17:57:03 -0400 (AST) Received: from alap2.localnet (e178225136.adsl.alicedsl.de [85.178.225.136]) by mail.anarazel.de (Postfix) with ESMTPSA id 18F93448006; Thu, 10 Dec 2009 22:57:01 +0100 (CET) From: Andres Freund To: pgsql-performance@postgresql.org Subject: Re: 8.4.1 ubuntu karmic slow createdb Date: Thu, 10 Dec 2009 22:56:59 +0100 User-Agent: KMail/1.13.0 (Linux/2.6.32-andres-00908-g6ec22f9; KDE/4.3.80; x86_64; ; ) Cc: Michael Clemmons References: <4427a97a0912101235x3ade510blcc00d5ce9883c6b6@mail.gmail.com> <4427a97a0912101241s68a83ee2pdea64f7478d4d92b@mail.gmail.com> In-Reply-To: <4427a97a0912101241s68a83ee2pdea64f7478d4d92b@mail.gmail.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <200912102256.59868.andres@anarazel.de> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-2.599 tagged_above=-10 required=5 tests=BAYES_00=-2.599 X-Spam-Level: X-Archive-Number: 200912/145 X-Sequence-Number: 36759 On Thursday 10 December 2009 21:41:08 Michael Clemmons wrote: > Hey, > I've got a computer which runs but 8.3 and 8.4. To create a db it takes 4s > for 8.3 and 9s for 8.4. I have many unit tests which create databases all > of the time and now run much slower than 8.3 but it seems to be much longer > as I remember at one point creating databases I considered an instantaneous > thing. Does any on the list know why this is true and if I can get it back > to normal. Possibly you had fsync=off at the time? Andres