From owner-freebsd-net@FreeBSD.ORG Sat Nov 18 16:21:39 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 73ECE16A40F for ; Sat, 18 Nov 2006 16:21:39 +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 D62E843D46 for ; Sat, 18 Nov 2006 16:21:34 +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 kAIGLbV3060229; Sat, 18 Nov 2006 11:21:37 -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 kAIGLblS075218 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 18 Nov 2006 11:21:37 -0500 (EST) (envelope-from mike@sentex.net) Message-Id: <200611181621.kAIGLblS075218@lava.sentex.ca> X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Sat, 18 Nov 2006 11:21:44 -0500 To: John Polstra From: Mike Tancsa In-Reply-To: References: 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 clamscanner2 X-Virus-Status: Clean Cc: freebsd-net@freebsd.org Subject: Re: Serious em problems under -current on two different platforms 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: Sat, 18 Nov 2006 16:21:39 -0000 At 08:24 PM 11/17/2006, John Polstra wrote: >Thanks for the reply, Mike. I think the PCI-Express risers in this >box are 8X. That's what the Dell spec sheet says, anyway. Havent had too much experience with PCIe riser cards yet, but have had some experience with bad PCI-X risers. Any way to test to see if its a bad riser card? The behaviour almost looks to be a hardware issue ? >Are you using both ports of the NIC? With an older driver, em0 >worked fine but em1 did not. Yes, actually I am testing the forwarding ability of the box. So far with FreeBSD, I found that the 2 kernel options below #options ADAPTIVE_GIANT # Giant mutex is adaptive. options NO_ADAPTIVE_MUTEXES and turning on fast_forwarding increases performance and responsiveness of the box. Straight Routing test One Stream (http://www.tancsa.com/blast.jpg) OS pps Linux 581,309.81 FreeBSD HEAD 441,559.50 RELENG6 i386 407,403.00 RELENG6 i386 FastFWD 557,589.25 FreeBSD HEAD w Patch 422,294.13 FreeBSD HEAD w Patch FastFWD 567,290.00 AMD64 RELENG6 w FastFWD 574,591.88 The patch has some changes glebius@freebsd.org asked me to test. > > Do you have them on xover cables or a switch ? > >They are connected to a Dell gigabit switch which I haven't ever had >any problems with. any errors at the time on the switch port when things lock up ? ---Mike >John