X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id ED58C11F66CE for ; Wed, 5 Apr 2006 19:03:15 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 14626-07 for ; Wed, 5 Apr 2006 19:03:14 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from davinci.ethosmedia.com (server227.ethosmedia.com [209.128.84.227]) by postgresql.org (Postfix) with ESMTP id 20EFD11F66EE for ; Wed, 5 Apr 2006 19:03:12 -0300 (ADT) X-EthosMedia-Virus-Scanned: no infections found Received: from [64.81.245.111] (account josh@agliodbs.com HELO [192.168.1.27]) by davinci.ethosmedia.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 9217337; Wed, 05 Apr 2006 15:06:12 -0700 From: Josh Berkus Reply-To: josh@agliodbs.com Organization: Aglio Database Solutions To: pgsql-performance@postgresql.org Subject: Re: Sun Fire T2000 and PostgreSQL 8.1.3 Date: Wed, 5 Apr 2006 15:01:39 -0700 User-Agent: KMail/1.8 Cc: "Juan Casero \(FL FLC\)" , "Luke Lonergan" References: <7583B3F1891CC0429FA4A44952AA539C66FA6D@wfm-exchprd2.wfm.pvt> In-Reply-To: <7583B3F1891CC0429FA4A44952AA539C66FA6D@wfm-exchprd2.wfm.pvt> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200604051501.40109.josh@agliodbs.com> X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.08 required=5 tests=[AWL=0.080] X-Spam-Score: 0.08 X-Spam-Level: X-Archive-Number: 200604/72 X-Sequence-Number: 18156 Juan, > When I hit > this pgsql on this laptop with a large query I can see the load spike up > really high on both of my virtual processors. Whatever, pgsql is doing > it looks like both cpu's are being used indepently. Nope, sorry, you're being decieved. Postgres is strictly one process, one query. You can use Bizgres MPP to achieve multithreading; it's proprietary and you have to pay for it. It does work well, though. More importantly, though, you haven't really explained why you care about multithreading. -- --Josh Josh Berkus Aglio Database Solutions San Francisco