Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 5CEEB9FA23C for ; Tue, 11 Sep 2007 18:31:14 -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 65850-04 for ; Tue, 11 Sep 2007 18:31:09 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from noel.decibel.org (noel.decibel.org [67.100.216.10]) by postgresql.org (Postfix) with ESMTP id 27CA69F9C11 for ; Tue, 11 Sep 2007 18:31:09 -0300 (ADT) Received: by noel.decibel.org (Postfix, from userid 1001) id 299C05648B; Tue, 11 Sep 2007 21:31:07 +0000 (UTC) Received: (hashcash-sendmail, from uid 1001); Tue, 11 Sep 2007 16:31:05 -0500 Date: Tue, 11 Sep 2007 16:31:05 -0500 From: Decibel! To: Jean-David Beyer Cc: pgsql-performance@postgresql.org Subject: Re: random_page_costs - are defaults of 4.0 realistic for SCSI RAID 1 Message-ID: <20070911213105.GF38801@decibel.org> References: <87lkbdlkxw.fsf@oxford.xeocode.com> <46E676D6.70807@verizon.net> <87zlzt9ifw.fsf@oxford.xeocode.com> <46E6E338.5050403@verizon.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="zWUHBedrvdvoEhgn" Content-Disposition: inline In-Reply-To: <46E6E338.5050403@verizon.net> X-Operating-System: FreeBSD 6.1-RELEASE-p10 amd64 X-Distributed: Join the Effort! http://www.distributed.net User-Agent: Mutt/1.5.13 (2006-08-11) X-Hashcash: 1:20:070911:jeandavid8@verizon.net::jYll4/ePvh8Woq1b:000000000000000 0000000000000000000000000Iij X-Hashcash: 1:20:070911:pgsql-performance@postgresql.org::pggzptCeenbua/sl:00000 0000000000000000000000005S+t X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200709/203 X-Sequence-Number: 26748 --zWUHBedrvdvoEhgn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Sep 11, 2007 at 02:49:28PM -0400, Jean-David Beyer wrote: > It is tricky for me to find a big enough file to test. I tried one of the dd if=3D/dev/zero of=3Dbigfile bs=3D8192 count=3D1000000 --=20 Decibel!, aka Jim Nasby decibel@decibel.org EnterpriseDB http://enterprisedb.com 512.569.9461 (cell) --zWUHBedrvdvoEhgn Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.3 (FreeBSD) iD8DBQFG5wkZdO30qud8SkgRAvtWAKCMSyehaGMoVnAgAWM/HjPb+6py/QCfRcFl vtHNjJuw95kVsZAylZ2JMxU= =qeUO -----END PGP SIGNATURE----- --zWUHBedrvdvoEhgn--