From owner-freebsd-amd64@FreeBSD.ORG Tue Mar 15 11:34:49 2005 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 74C5116A4CE for ; Tue, 15 Mar 2005 11:34:49 +0000 (GMT) Received: from isis.sigpipe.cz (r2g224.chello.upc.cz [62.245.70.224]) by mx1.FreeBSD.org (Postfix) with ESMTP id C797B43D5C for ; Tue, 15 Mar 2005 11:34:48 +0000 (GMT) (envelope-from neuhauser@chello.cz) Received: by isis.sigpipe.cz (Postfix, from userid 1001) id E33C61F87BEE; Tue, 15 Mar 2005 12:34:47 +0100 (CET) Date: Tue, 15 Mar 2005 12:34:47 +0100 From: Roman Neuhauser To: Scott Long Message-ID: <20050315113447.GD10877@isis.sigpipe.cz> References: <1110847561.3412.38.camel@lanshark.dmv.com> <42366B99.4040904@samsco.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <42366B99.4040904@samsco.org> User-Agent: Mutt/1.5.6i cc: freebsd-amd64@freebsd.org Subject: Re: amr performance woes and a bright side X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Mar 2005 11:34:49 -0000 # scottl@samsco.org / 2005-03-14 21:59:05 -0700: > So setting aside the bonnie tests, the PQSQL stats do indeed show a > problem. Is PGSQL threaded? If so, you might be running into some of > the threading performance problems that are well known and are being > worked on. I don't know a whole lot about PGSQL or the tests that you > are talking about, but if you had an easy recipe for duplicating your > test environment, I'd like to experiment some myself. PostgreSQL is a forked program, it forks a backend process for each connection, using shared memory for communication between the backends. -- How many Vietnam vets does it take to screw in a light bulb? You don't know, man. You don't KNOW. Cause you weren't THERE. http://bash.org/?255991