X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id CC72E52B9C for ; Wed, 13 Jul 2005 16:11:49 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 36077-06 for ; Wed, 13 Jul 2005 19:11:46 +0000 (GMT) Received: from sccmmhc91.asp.att.net (sccmmhc91.asp.att.net [204.127.203.211]) by svr1.postgresql.org (Postfix) with ESMTP id 6A91F52A2C for ; Wed, 13 Jul 2005 16:11:45 -0300 (ADT) Received: from juju.arbash-meinel.com ([12.214.18.81]) by sccmmhc91.asp.att.net (sccmmhc91) with ESMTP id <20050713191145m9100cf4v0e>; Wed, 13 Jul 2005 19:11:46 +0000 Received: by juju.arbash-meinel.com (Postfix, from userid 505) id ADF9055FEC; Wed, 13 Jul 2005 14:11:45 -0500 (CDT) Received: from [192.168.1.11] (liliana.arbash-meinel.com [192.168.1.11]) by juju.arbash-meinel.com (Postfix) with ESMTP id CA49655F98; Wed, 13 Jul 2005 14:11:41 -0500 (CDT) Message-ID: <42D56772.6020408@arbash-meinel.com> Date: Wed, 13 Jul 2005 14:11:46 -0500 From: John A Meinel User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Dan Harris Cc: pgsql-performance@postgresql.org Subject: Re: Quad Opteron stuck in the mud References: In-Reply-To: X-Enigmail-Version: 0.92.0.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigD190497174A8400B62E3C137" X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.047 tagged_above=0 required=5 tests=AWL, FORGED_RCVD_HELO X-Spam-Level: X-Archive-Number: 200507/147 X-Sequence-Number: 13388 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigD190497174A8400B62E3C137 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Dan Harris wrote: > Gurus, > > even the explain never > finishes when I try that. Just a short bit. If "EXPLAIN SELECT" doesn't return, there seems to be a very serious problem. Because I think EXPLAIN doesn't actually run the query, just has the query planner run. And the query planner shouldn't ever get heavily stuck. I might be wrong, but there may be something much more substantially wrong than slow i/o. John =:-> --------------enigD190497174A8400B62E3C137 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (Cygwin) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFC1WdyJdeBCYSNAAMRAo7GAJ4oLZc+JTpiwDJDJ5nzwYRbEAoocwCcDE+o V8XImXDydGv7uXMX+Fhc31I= =1gn4 -----END PGP SIGNATURE----- --------------enigD190497174A8400B62E3C137--