From owner-freebsd-performance@FreeBSD.ORG Wed Nov 22 14:27:41 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id D3E7C16A415; Wed, 22 Nov 2006 14:27:41 +0000 (UTC) (envelope-from ohartman@zedat.fu-berlin.de) Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) by mx1.FreeBSD.org (Postfix) with ESMTP id DDAA243D58; Wed, 22 Nov 2006 14:27:09 +0000 (GMT) (envelope-from ohartman@zedat.fu-berlin.de) Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost1.zedat.fu-berlin.de (Exim 4.62) with esmtp (envelope-from ) id <1Gmt4b-0006gn-EL>; Wed, 22 Nov 2006 15:27:37 +0100 Received: from telesto.geoinf.fu-berlin.de ([130.133.86.198]) by inpost2.zedat.fu-berlin.de (Exim 4.62) with esmtpsa (envelope-from ) id <1Gmt4b-00049h-DH>; Wed, 22 Nov 2006 15:27:37 +0100 Message-ID: <45645E4B.9010308@zedat.fu-berlin.de> Date: Wed, 22 Nov 2006 15:27:23 +0100 From: "O. Hartmann" Organization: Freie =?ISO-8859-1?Q?Universit=E4t_Berlin?= User-Agent: Thunderbird 1.5.0.8 (X11/20061110) MIME-Version: 1.0 To: Marcelo Gardini do Amaral References: <20061030192702.GG76994@registro.br> <20061111091844.I63959@fledge.watson.org> <20061116164053.GR57732@registro.br> <455F1021.6040004@mail.zedat.fu-berlin.de> <20061122135247.GA87427@registro.br> In-Reply-To: <20061122135247.GA87427@registro.br> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: 130.133.86.198 Cc: "O. Hartmann" , Robert Watson , freebsd-performance@freebsd.org Subject: Re: DNS Performance Numbers X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Nov 2006 14:27:41 -0000 Marcelo Gardini do Amaral wrote: > On Sat, Nov 18, 2006 at 02:52:33PM +0100, O. Hartmann wrote: > >> These results looks very puzzling to me. >> As far as I know, multithreading and/or multiprocessors should perform >> better anyway than a single threaded application within other >> applications on an UP box. Strange results ...And more strange than this >> is the result taken from the FBSD 4.11 box! Is there an explanation why >> FreeBSD performs so bad beyond 4.X and on SMP boxes? Please show me >> threads ... > > > The results were discussed in the following threads: > > http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011748.html > > http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011756.html > > http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011767.html > > http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011771.html > > ... > > Thank you very much for the search. To be honest, it looks very disappointing to me. At this moment I regret not having more substantle opportunities to test, but with the end of this year or with the beginning of next year my department starts using Opteron blade systems for our research purposes and I may have the chance to test, too (SUN X4100 or SUN X1200 M2 are discussed, but I'm not sure). My hope is still that FreeBSD evolves to be worth being used in science, especially for clustering and high performance computing. It seems that Linux has made it due its support by many Compiler vendors (Pathscale, Intel) and, obviously, its much better network und SMP performance. Regards, Oliver