From owner-freebsd-performance@FreeBSD.ORG Wed Mar 9 10:09:35 2005 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 991C116A4CF for ; Wed, 9 Mar 2005 10:09:35 +0000 (GMT) Received: from elaine.ispinfo.fr (elaine.ispinfo.fr [81.255.64.45]) by mx1.FreeBSD.org (Postfix) with ESMTP id 82D9D43D69 for ; Wed, 9 Mar 2005 10:09:34 +0000 (GMT) (envelope-from mlh@ispinfo.fr) Received: from uriens.ispinfo.fr (smtp0.ispinfo.fr [81.255.64.47]) by elaine.ispinfo.fr (8.9.3/8.9.3) with ESMTP id LAA43653 for ; Wed, 9 Mar 2005 11:09:33 +0100 (CET) (envelope-from mlh@ispinfo.fr) Received: from smtpz.awape.fr (smtpz.ispinfo.fr [81.255.64.49]) by uriens.ispinfo.fr (8.11.1/8.11.1) with ESMTP id j29A9WJ15144 for ; Wed, 9 Mar 2005 11:09:32 +0100 (CET) (envelope-from mlh@ispinfo.fr) Received: from smtpe.ispinfo.fr (smtpe.ispinfo.fr [81.255.64.52]) by smtpz.awape.fr (8.12.11/8.12.11) with ESMTP id j29A9USO004324 for ; Wed, 9 Mar 2005 11:09:30 +0100 (CET) (envelope-from mlh@ispinfo.fr) Received: from [192.168.1.82] ([192.168.1.82]) by smtpe.ispinfo.fr (8.12.8p1/8.12.3) with ESMTP id j29A9U0m010316 for ; Wed, 9 Mar 2005 11:09:30 +0100 (CET) (envelope-from mlh@ispinfo.fr) Message-ID: <422ECAF7.4050407@ispinfo.fr> Date: Wed, 09 Mar 2005 11:07:51 +0100 From: ISP Informatique Organization: ISP Informatique User-Agent: Mozilla Thunderbird 1.0 (X11/20050124) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-performance@freebsd.org X-Enigmail-Version: 0.89.5.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Subject: FreeBSD 5.3 et multiprocessor X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2005 10:09:35 -0000 Hello, I recently have just passed a server of FreeBSD 4.2 to FreeBSD 5.3. The nasty surprise being which I note a notable reduction in the performances. The machine is a HP LT6000r, quadri Xeon 700 with 2Go of RAM. The results are appreciably the same ones with a kernel including or not "options SMP". Did I miss some thing? or perhaps did this already arrive at others? In particular, I has just crossed this in http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html > > options SCHED_4BSD # 4BSD scheduler > > > The traditional scheduler for FreeBSD. Depending on your system's > workload, you may gain performance by using the new ULE scheduler for > FreeBSD that has been designed specially for SMP, but works just fine > on UP systems too. If you wish to try it out, replace SCHED_4BSD with > SCHED_ULE in your configuration file. Did you already test? By advance, thank you, -- Hubert Adgié ISP Informatique www.ispinfo.fr 0890 710 147