From owner-freebsd-current@FreeBSD.ORG Sat Jun 19 03:27:32 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CBAF5106564A for ; Sat, 19 Jun 2010 03:27:32 +0000 (UTC) (envelope-from lstewart@freebsd.org) Received: from lauren.room52.net (lauren.room52.net [210.50.193.198]) by mx1.freebsd.org (Postfix) with ESMTP id 6447B8FC08 for ; Sat, 19 Jun 2010 03:27:31 +0000 (UTC) Received: from lawrence1.loshell.room52.net (unknown [59.167.184.191]) by lauren.room52.net (Postfix) with ESMTPSA id 004827E84A for ; Sat, 19 Jun 2010 13:27:30 +1000 (EST) Message-ID: <4C1C3922.2050102@freebsd.org> Date: Sat, 19 Jun 2010 13:27:30 +1000 From: Lawrence Stewart User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-AU; rv:1.9.1.9) Gecko/20100405 Thunderbird/3.0.4 MIME-Version: 1.0 To: freebsd-current@freebsd.org References: <4C1492D0.6020704@freebsd.org> In-Reply-To: <4C1492D0.6020704@freebsd.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [CFT] SIFTR - Statistical Information For TCP Research: Uncle Lawrence needs YOU! X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Jun 2010 03:27:33 -0000 Amount of feedback received thus far: nichts, nil, nada *sings "I'm so ronery" in his best Kim Jong-il voice* [4] Just like Uncle Sam [5], Uncle Lawrence needs you too - yes, I'm pointing at YOU! More specifically, people out there running current with 10-15 mins to spare for some testing, please read on. On 06/13/10 18:12, Lawrence Stewart wrote: > Hi all, > > The time has come to solicit some external testing for my SIFTR tool. > I'm hoping to commit it within a week or so unless problems are discovered. > > SIFTR is a kernel module that logs a range of statistics on active TCP > connections to a log file. It provides the ability to make highly > granular measurements of TCP connection state, aimed at system > administrators, developers and researchers. You can use the data to find > bugs in the stack, understand why connections are performing badly and > test new code to name a few uses. > > Development has been made possible in part by grants from the Cisco > University Research Program Fund at Community Foundation Silicon Valley, > and the FreeBSD Foundation. Bringing it into FreeBSD proper is being > carried out under the auspices of the "Enhancing the FreeBSD TCP > Implementation" FreeBSD Foundation project. More details are available > at [1,2,3]. > > If you can help out, please read on! > > Before continuing, make sure you're running with at least svn revision > 209119 (my commit to ), or you can manually apply the > r209119 diff to to your earlier rev source tree. > > The SIFTR patch is here: > > http://people.freebsd.org/~lstewart/patches/tcp_ffcaia2008/siftr_9.x.r209119.patch An updated version of the patch against svn head revision 209325 is available from: http://people.freebsd.org/~lstewart/patches/tcp_ffcaia2008/siftr_9.x.r209325.patch There was a backwards incompatible change in the external DPCPU_SUM() macro in in r209325 of head so SIFTR also had to be updated. Please adapt the following instructions as appropriate based on the patch version you're testing. > Copy it to the root of your source tree and run the following: > > patch -p1 < siftr_9.x.r209119.patch > > It's a loadable kernel module so you can build it for testing like so: > > cd /sys/modules/siftr > make > kldload ./siftr.ko > (don't forget to "make cleandir" to remove cruft when finished testing) > > After applying the patch, you can read the man page by running: > > man -M /share/man siftr > > If I've done a decent job, all the info you need to understand what it > does and how to use it should be in the man page. > > I'm interested in all feedback and reports of success/failure, along > with details of the architecture tested and number of CPUs if you would > be so kind. > > That should be enough to get the ball rolling. Thanks and I look forward > to hearing from you! > > Cheers, > Lawrence > > [1] http://caia.swin.edu.au/freebsd/etcp09/ > > [2] http://www.freebsdfoundation.org/projects.shtml#Swinburne > > [3] http://caia.swin.edu.au/urp/newtcp/ [4] http://www.youtube.com/watch?v=xh_9QhRzJEs (language warning) [5] http://www.sonofthesouth.net/uncle-sam/images/uncle-sam-wants-you.jpg