From owner-freebsd-net@FreeBSD.ORG Sun Jul 6 01:06:16 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4D8E0106567A for ; Sun, 6 Jul 2008 01:06:16 +0000 (UTC) (envelope-from bart@it-ss.be) Received: from mx20.it-ss.be (mx20.it-ss.be [195.28.164.230]) by mx1.freebsd.org (Postfix) with ESMTP id A40888FC19 for ; Sun, 6 Jul 2008 01:06:15 +0000 (UTC) (envelope-from bart@it-ss.be) Received: from authrelay.it-ss.be (authrelay.it-ss.be [195.28.164.225]) by mx20.it-ss.be (8.13.8/8.13.8) with ESMTP id m65Mrcnr013545 for ; Sun, 6 Jul 2008 00:53:38 +0200 Received: from bartwrkstxp (220.108-242-81.adsl-dyn.isp.belgacom.be [81.242.108.220]) (authenticated bits=0) by mx10.it-ss.be (8.13.6/8.13.6) with ESMTP id m65MrVdZ007311; Sun, 6 Jul 2008 00:53:33 +0200 Message-ID: <2d3001c8def1$f4309b90$020b000a@bartwrkstxp> From: "Bart Van Kerckhove" To: "Ingo Flaschberger" , "Paul" References: <4867420D.7090406@gtcomm.net> <486986D9.3000607@monkeybrains.net><48699960.9070100@gtcomm.net><20080701033117.GH83626@cdnetworks.co.kr><4869ACFC.5020205@gtcomm.net> <4869B025.9080006@gtcomm.net><486A7E45.3030902@gtcomm.net> <486A8F24.5010000@gtcomm.net><486A9A0E.6060308@elischer.org> <486B41D5.3060609@gtcomm.net><486B4F11.6040906@gtcomm.net><486BC7F5.5070604@gtcomm.net><20080703160540.W6369@delplex.bde.org><486C7F93.7010308@gtcomm.net><20080703195521.O6973@delplex.bde.org><486D35A0.4000302@gtcomm.net><486DF1A3.9000409@gtcomm.net><486E65E6.3060301@gtcomm.net> Date: Sun, 6 Jul 2008 00:52:53 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Scanned-By: MIMEDefang 2.63 on 195.28.164.230 X-Scanned-By: MIMEDefang 2.63 on 195.28.164.225 Cc: FreeBSD Net Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Jul 2008 01:06:16 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Paul / Ingo, > >> I tried all of this :/ still, 256/512 descriptors seem to work the >> best. Happy to let you log into the machine and fiddle around if you >> want :) I've been watching this thread closely, since I'm in a very similair situation. A few questions/remarks: Does ULE provide better performance than 4BSD for forwarding? Did you try freebsd4 as well? This thread had a report about that quite opposite to my own experiences, -4 seemed to be a lot faster at forwarding than anything else I 've tried so far. Obviously the thing I'm interested in is IMIX - and 64byte packets. Does anyone have any benchmarks for DragonFly? I asked around on IRC, but that nor google turned up any useful results. > I don't think you will be able to route 64byte packets at 1gbit > wirespeed (2Mpps) with a current x86 platform. Are there actual hardware related reasons this should not be possible, or is this purely lack of dedicated work towards this goal? >Theres a "sun" used at quagga dev as bgp-route-server. >http://quagga.net/route-server.php >(but they don't answered my question regarding fw-performance). the Quagga guys are running a sun T1000 (niagara 1) route server - I happen to have the machine in my racks, please let me know if you want to run some tests on it, I'm sure they won't mind ;-) It should also make a great testbed for SMP performance testing imho (and they're pretty cheap these days) Also, feel free to use me as a relay for your questions, they're not always very reachable. > Perhaps you have some better luck at some different hardware systems > (ppc, mips, ..?) or use freebsd only for routing-table-updates and > special network-cards (netfpga) for real routing. The netfpga site seems more or less dead - is this project still alive? It does look like a very interesting idea, even though it's currently quite linux-centric (and according to docs doesn't have VLAN nor ip6 support, the former being quite a dealbreaker) Paul: I'm looking forward to the C2D 32bit benchmarks (maybe throw in a freebsd4 and/or dragonfly bench if you can..) - appreciate the lots of information you are providing us :) Met vriendelijke groet / With kind regards, Bart Van Kerckhove http://friet.net/pgp.txt -----BEGIN PGP SIGNATURE----- iQA/AwUBSG/tMgoIFchBM0BKEQKUSQCcCJqsw2wtUX7HQi050HEDYX3WPuMAnjmi eca31f7WQ/oXq9tJ8TEDN3CA =YGYq -----END PGP SIGNATURE-----