From owner-freebsd-stable@FreeBSD.ORG Fri Jun 10 21:04:26 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E257A16A41C for ; Fri, 10 Jun 2005 21:04:26 +0000 (GMT) (envelope-from gid@lonres.com) Received: from anchor-post-33.mail.demon.net (anchor-post-33.mail.demon.net [194.217.242.91]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9371A43D1F for ; Fri, 10 Jun 2005 21:04:26 +0000 (GMT) (envelope-from gid@lonres.com) Received: from mail.lonres.com ([194.70.153.187]) by anchor-post-33.mail.demon.net with esmtp (Exim 4.42) id 1Dgqfx-000E4x-BA; Fri, 10 Jun 2005 21:04:25 +0000 Received: from [192.168.254.131] (wlan-131.lonres.com [192.168.254.131]) by mail.lonres.com (Postfix) with ESMTP id 5CDBF2E06C; Fri, 10 Jun 2005 22:04:25 +0100 (BST) In-Reply-To: <42A9FA02.5080401@palisadesys.com> References: <746fd037f6ca8131a8fb8938f1e346e9@lonres.com> <20050610170537.GA67849@bibipentium.lonres.com> <42A9FA02.5080401@palisadesys.com> Mime-Version: 1.0 (Apple Message framework v730) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <57D8CF12-24EA-4017-863C-D4F31FAFF35D@lonres.com> Content-Transfer-Encoding: 7bit From: Tom Gidden Date: Fri, 10 Jun 2005 22:04:23 +0100 To: Guy Helmer X-Mailer: Apple Mail (2.730) Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD MySQL still WAY slower than Linux X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jun 2005 21:04:27 -0000 Hi Guy, On 10 Jun 2005, at 21:37, Guy Helmer wrote: > > Have you tried a kernel with PREEMPTION enabled? I haven't > quantified the effect, but it's improved performance in some > situations. > Have you tried increasing vfs.read_max? Thanks for your suggestions... I've given them a go, and it looks like there's no discernible difference in performance for either/ both, on KSE, libthr or LinuxThreads. =( Regards, Tom