From owner-freebsd-net@FreeBSD.ORG Wed Jul 20 18:07:29 2011 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 F1949106566B for ; Wed, 20 Jul 2011 18:07:29 +0000 (UTC) (envelope-from mwlucas@bewilderbeast.blackhelicopters.org) Received: from bewilderbeast.blackhelicopters.org (mwlucas-2-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:b9c::2]) by mx1.freebsd.org (Postfix) with ESMTP id 83D978FC16 for ; Wed, 20 Jul 2011 18:07:29 +0000 (UTC) Received: from bewilderbeast.blackhelicopters.org (localhost [127.0.0.1]) by bewilderbeast.blackhelicopters.org (8.14.4/8.14.4) with ESMTP id p6KI7R66042521; Wed, 20 Jul 2011 14:07:28 -0400 (EDT) (envelope-from mwlucas@bewilderbeast.blackhelicopters.org) Received: (from mwlucas@localhost) by bewilderbeast.blackhelicopters.org (8.14.4/8.14.4/Submit) id p6KI7RXx042520; Wed, 20 Jul 2011 14:07:27 -0400 (EDT) (envelope-from mwlucas) Date: Wed, 20 Jul 2011 14:07:27 -0400 From: "Michael W. Lucas" To: Steven Hartland Message-ID: <20110720180727.GA42467@bewilderbeast.blackhelicopters.org> References: <8169F6D082484BCF8BBA5E31AF4D00BB@multiplay.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8169F6D082484BCF8BBA5E31AF4D00BB@multiplay.co.uk> User-Agent: Mutt/1.4.2.3i X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (bewilderbeast.blackhelicopters.org [127.0.0.1]); Wed, 20 Jul 2011 14:07:28 -0400 (EDT) Cc: freebsd-net@freebsd.org, Jack Vogel Subject: Re: kern/152828: [em] poor performance on 8.1, 8.2-PRE 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: Wed, 20 Jul 2011 18:07:30 -0000 Hi, I'm not seeing a complete stall, just very slow performance. I have two hosts on a shared gigabit Ethernet. One is OpenSolaris, the other FreeBSD. My SCP from the Opensolaris box to the FreeBSD one goes at: 653 MB 00:29 The FreeBSD machine is an Intel SS4200-E. I have a second environment, identical except they're on a 100Mb switch rather than gigabit. Very similar throughput. Any suggestions appreciated. Thanks, ==ml On Wed, Jul 20, 2011 at 06:31:17PM +0100, Steven Hartland wrote: > It stalls on just a basic file scp. Our current test is to scp the freebsd > iso to the machine. It won't always do it but it does "seem" like once its > had > one stall its very much more prone to repeat stalls. > > Here are some examples of what we see:- > > FreeBSD-8.2-RELEASE-amd64-disc1.iso 41% 284MB 0.3KB/s - stalled > -Read from remote host test01: Operation timed out > lost connection > > > world-2011-05-15-09-53-16.tar.gz 100% 67MB 3.4MB/s 00:20 > world-2011-05-30-07-35-37.tar.gz 100% 68MB 5.7MB/s 00:12 > world-2011-05-05-23-51-00.tar.gz 100% 50MB 3.6MB/s 00:14 > world-2011-06-06-14-20-09.tar.gz 100% 81MB 3.7MB/s 00:22 > world-2011-06-15-09-10-42.tar.gz 44% 61MB 41.5KB/s - stalled > -^world-2011-06-15-09-10-42.tar.gz > Failed to restore server, aborting! > Write failed: Broken pipe > > Regards > Steve > > ----- Original Message ----- > From: "Jack Vogel" > To: "Steven Hartland" > Cc: ; "Michael W. Lucas" > > Sent: Wednesday, July 20, 2011 6:18 PM > Subject: Re: kern/152828: [em] poor performance on 8.1, 8.2-PRE > > > >Can you formulate a scenario that anyone else can setup and reproduce this? > > > >Jack > > > > > >On Wed, Jul 20, 2011 at 10:13 AM, Steven Hartland > >wrote: > > > >>** > >>Yep, it stalls 8.2 partners as well :( > >> > >>----- Original Message ----- > >>*From:* Jack Vogel > >>*To:* Steven Hartland > >>*Cc:* Michael W. Lucas ; > >>freebsd-net@freebsd.org > >>*Sent:* Wednesday, July 20, 2011 6:03 PM > >>*Subject:* Re: kern/152828: [em] poor performance on 8.1, 8.2-PRE > >> > >>Did you eliminate that 7.0 box as part of the issue? Meaning switch to say > >>a Linux > >>or 8.2 partner to see if the problem persists or stops? > >> > >> > >>================================================ > >>This e.mail is private and confidential between Multiplay (UK) Ltd. and > >>the > >>person or entity to whom it is addressed. In the event of misdirection, > >>the > >>recipient is prohibited from using, copying, printing or otherwise > >>disseminating it or any information contained in it. > >> > >>In the event of misdirection, illegible or incomplete transmission please > >>telephone +44 845 868 1337 > >>or return the E.mail to postmaster@multiplay.co.uk. > >> > >_______________________________________________ > >freebsd-net@freebsd.org mailing list > >http://lists.freebsd.org/mailman/listinfo/freebsd-net > >To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > > > > ================================================ > This e.mail is private and confidential between Multiplay (UK) Ltd. and the > person or entity to whom it is addressed. In the event of misdirection, the > recipient is prohibited from using, copying, printing or otherwise > disseminating it or any information contained in it. > In the event of misdirection, illegible or incomplete transmission please > telephone +44 845 868 1337 > or return the E.mail to postmaster@multiplay.co.uk. -- Michael W. Lucas http://www.MichaelWLucas.com/, http://blather.MichaelWLucas.com/ Latest book: Network Flow Analysis http://www.networkflowanalysis.com/ mwlucas@BlackHelicopters.org, Twitter @mwlauthor