From owner-freebsd-performance@FreeBSD.ORG Tue Nov 28 19:00:05 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 4549416A512 for ; Tue, 28 Nov 2006 19:00:05 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost1.sentex.ca (smarthost1.sentex.ca [64.7.153.18]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3D87243EAB for ; Tue, 28 Nov 2006 18:56:47 +0000 (GMT) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by smarthost1.sentex.ca (8.13.6/8.13.6) with ESMTP id kASIufVc053367; Tue, 28 Nov 2006 13:56:41 -0500 (EST) (envelope-from mike@sentex.net) Received: from mdt-xp.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.13.6/8.13.3) with ESMTP id kASIueZX035063 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 28 Nov 2006 13:56:40 -0500 (EST) (envelope-from mike@sentex.net) Message-Id: <200611281856.kASIueZX035063@lava.sentex.ca> X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Tue, 28 Nov 2006 13:55:48 -0500 To: Massimo Lusetti From: Mike Tancsa In-Reply-To: <20061128090648.d58eb6ae.massimo@cedoc.mo.it> References: <4557CECD.2000609@samsco.org> <200611130158.kAD1wdKE040908@lava.sentex.ca> <4557EF13.9060305@samsco.org> <200611130454.kAD4sZwe041556@lava.sentex.ca> <4557FF7A.8020704@samsco.org> <200611132054.kADKsFvK045726@lava.sentex.ca> <4558E3DC.6080800@samsco.org> <200611200454.kAK4sdat083568@lava.sentex.ca> <7.1.0.9.0.20061120160757.14d4a728@sentex.net> <200611220247.kAM2l9JP095066@lava.sentex.ca> <20061122130947.GM20405@obiwan.tataz.chchile.org> <200611231652.kANGqJsr005016@lava.sentex.ca> <1164356894.4306.1.camel@massimo.datacode.it> <200611272136.kARLaMeG029740@lava.sentex.ca> <20061128090648.d58eb6ae.massimo@cedoc.mo.it> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: ClamAV version 0.88.3, clamav-milter version 0.88.3 on clamscanner3 X-Virus-Status: Clean Cc: freebsd-performance@freebsd.org Subject: Re: em forwarding performance (was Proposed 6.2 em RELEASE patch 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: Tue, 28 Nov 2006 19:00:05 -0000 At 03:06 AM 11/28/2006, Massimo Lusetti wrote: >On Mon, 27 Nov 2006 16:36:34 -0500 >Mike Tancsa wrote: > > > OK, I added OpenBSD to the mix as well. Results are pretty crappy > > with the base default install. With one stream, the box essentially > > live locks. This was just with the stock kernels from the CD. The > > PCIe bge nics dont work, so I cant test those. I had a look at their > > errata page and there seems to be some updates to those 2 nics so if > > there is interest I can try compiling in those fixes and re-testing > >FWIW I would definitively like to see it. But thanks for going so far.. I will give it another try tomorrow as I dont have much time today. However, I did one test with a new CPU. I changed the cpu from an AMD 3800 to an AMD4600. So going from a CPU with a clock speed of 2Ghz to 2.4Gz. The difference is sort of what one would expect. In the ipfw tests, (with a sample of 40 seconds) opposite path forwarding with 10 ipfw rules went from 208 Kpps to 235 Kpps or about a 10% increase as opposed to the ~ 15% increase in clock speed. Perhaps bus is more of a limiting factor that CPU but then again some the difference could be explained with normal variance. ---Mike