From owner-freebsd-performance@FreeBSD.ORG Mon Aug 2 16:06:33 2010 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 689381065735 for ; Mon, 2 Aug 2010 16:06:33 +0000 (UTC) (envelope-from jdixon@omniti.com) Received: from edge.omniti.com (smtp.omniti.com [8.8.38.6]) by mx1.freebsd.org (Postfix) with ESMTP id 1AAB68FC29 for ; Mon, 2 Aug 2010 16:06:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; d=omniti.com; s=s1024; c=relaxed/relaxed; q=dns/txt; i=@omniti.com; t=1280765192; h=From:Subject:Date:To; bh=ZBUdPoTkYjXTQ+PfVQi4OWGgYV50VdOXaTT+oMwJw5E=; b=TcYjEu79iIVcwdux5fKz1FbI3k1lxX63E0hFMDPA3KNyppMs4GHMFx9z+kuWnTpa Vad6mH28vGUCBrcCcn2jubGJYsJrRNUkqmWvNqvYk6ci9RC3LPS1pEOMeyEvg0q0 KqgNJ9Yewps2/1mVfRZFCdhX+uYBQfenycLvdZ9mSjg=; Authentication-Results: edge smtp.user=jdixon@omniti.com; auth=pass (LOGIN) Received: from [68.55.0.29] ([68.55.0.29:62801] helo=omniti.com) by edge (envelope-from ) (ecelerity 2.2.3.46 r(37468M)) with ESMTPSA (cipher=AES256-SHA) id 10/0A-03560-80DE65C4; Mon, 02 Aug 2010 12:06:32 -0400 Date: Mon, 2 Aug 2010 12:06:28 -0400 From: Jason Dixon To: freebsd-performance@freebsd.org Message-ID: <20100802160628.GT4578@omniti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.18 (2008-05-17) Subject: Register now for Surge 2010 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: Mon, 02 Aug 2010 16:06:33 -0000 Registration for Surge Scalability Conference 2010 is open for all attendees! We have an awesome lineup of leaders from across the various communities that support highly scalable architectures, as well as the companies that implement them. Here's a small sampling from our list of speakers: John Allspaw, Etsy Theo Schlossnagle, OmniTI Rasmus Lerdorf, creator of PHP Tom Cook, Facebook Benjamin Black, fast_ip Artur Bergman, Wikia Christopher Brown, Opscode Bryan Cantrill, Joyent Baron Schwartz, Percona Paul Querna, Cloudkick Surge 2010 focuses on real case studies from production environments; the lessons learned from failure and how to re-engineer your way to a successful, highly scalable Internet architecture. The conference takes place at the Tremont Grand Historic Venue on Sept 30 and Oct 1, 2010 in Baltimore, MD. Register now to enjoy the Early Bird discount and guarantee your seat to this year's event! http://omniti.com/surge/2010/register Thanks, -- Jason Dixon OmniTI Computer Consulting, Inc. jdixon@omniti.com 443.325.1357 x.241 From owner-freebsd-performance@FreeBSD.ORG Thu Aug 5 20:16:47 2010 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 35ABF1065679 for ; Thu, 5 Aug 2010 20:16:47 +0000 (UTC) (envelope-from case.vanrij@gmail.com) Received: from mail-wy0-f182.google.com (mail-wy0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id C1DA98FC13 for ; Thu, 5 Aug 2010 20:16:46 +0000 (UTC) Received: by wyj26 with SMTP id 26so8735640wyj.13 for ; Thu, 05 Aug 2010 13:16:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=bKk9SpffnFS18laDZKvQJ2KV5bajrCRgnigRfTrDx/g=; b=pNtKEsu7AddkDnze6pSXk02JsYmVKOcFtPRNOcfGTU7XvksVeU3j69zihtIV5qjSzB umnEP4OaLEkmAPUjGmvOntNXUztcbuTn99mvuQHDyLQMOyHCGx0650+IbSj9vhzTvUSp i6hUTzgZZRC9b8cJC2WnY9uT8edVOxHycgDMU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=CPrhjehPVSslmNQYVsALyvyvhMKxOHDmsnARuMO24lPtDmadYU2tVmbQwhUj4bXICl EH2tJqgvQuEjfcn2AiCIYX6xs1MjzTTZnpz2kIZiyhXzS3nogK1Tg3L2opqKtuA/LCAu EdzC3a0gkxqlF8J/WPMJ+/SLhbR/Qn3+91/6s= MIME-Version: 1.0 Received: by 10.227.147.82 with SMTP id k18mr9878927wbv.64.1281038014337; Thu, 05 Aug 2010 12:53:34 -0700 (PDT) Received: by 10.227.146.10 with HTTP; Thu, 5 Aug 2010 12:53:34 -0700 (PDT) Date: Thu, 5 Aug 2010 12:53:34 -0700 Message-ID: From: Case van Rij To: freebsd-performance@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Subject: 7.2-RELEASE performance of em + 9k MTU + tso on ESB2 chipset 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: Thu, 05 Aug 2010 20:16:47 -0000 While investigating a performance issue on a 7.2-RELEASE system I noticed iperf performance on systems with an ESB2 chipset (supermicro X7DBU onboard em) is worse when TSO is enabled at 9000 MTU: em0: flags=8843 metric 0 mtu 9000 options=19b ether 00:30:48:33:43:4e inet 10.53.13.161 netmask 0xffff0000 broadcast 10.53.255.255 media: Ethernet autoselect (1000baseTX ) status: active em0@pci0:4:0:0: class=0x020000 card=0x000015d9 chip=0x10968086 rev=0x01 hdr=0x00 vendor = 'Intel Corporation' device = 'PRO/1000 EB Network Connection' ad005# /usr/local/bin/iperf -c 10.53.13.236 -l 512k -w 1024k -N -t 30 ------------------------------------------------------------ Client connecting to 10.53.13.236, TCP port 5001 TCP window size: 32.0 KByte (WARNING: requested 1.00 MByte) ------------------------------------------------------------ [ 3] local 10.53.13.161 port 56621 connected with 10.53.13.236 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-30.0 sec 2.69 GBytes 769 Mbits/sec ad005# ifconfig em0 -tso ad005# /usr/local/bin/iperf -c 10.53.13.236 -l 512k -w 1024k -N -t 30 ------------------------------------------------------------ Client connecting to 10.53.13.236, TCP port 5001 TCP window size: 32.0 KByte (WARNING: requested 1.00 MByte) ------------------------------------------------------------ [ 3] local 10.53.13.161 port 54876 connected with 10.53.13.236 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-30.0 sec 3.26 GBytes 933 Mbits/sec I looked through the archive and didn't see anything related to this, but I'm curious if this is a known issue. I have not yet verified if the behaviour is the same on 8.0 Curiously, this doesn't seem to be a problem (or much less so) on 82546EB qaI-LSI-A-2# ifconfig em0 10.53.138.12 netmask 255.255.0.0 mtu 9000 tso qaI-LSI-A-2# iperf -c 10.53.138.11 -l 512k -w 1024k -N -t 30 ------------------------------------------------------------ Client connecting to 10.53.138.11, TCP port 5001 TCP window size: 1.01 MByte (WARNING: requested 1.00 MByte) ------------------------------------------------------------ [ 3] local 10.53.138.12 port 49694 connected with 10.53.138.11 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-30.0 sec 3.29 GBytes 942 Mbits/sec qaI-LSI-A-2# ifconfig em0 10.53.138.12 netmask 255.255.0.0 mtu 9000 -tso qaI-LSI-A-2# iperf -c 10.53.138.11 -l 512k -w 1024k -N -t 30 ------------------------------------------------------------ Client connecting to 10.53.138.11, TCP port 5001 TCP window size: 1.01 MByte (WARNING: requested 1.00 MByte) ------------------------------------------------------------ [ 3] local 10.53.138.12 port 52284 connected with 10.53.138.11 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-30.0 sec 3.27 GBytes 935 Mbits/sec Thanks, Case