Date: Fri, 12 Nov 2010 09:58:38 -0800 From: "Kevin Oberman" <oberman@es.net> To: Lawrence Stewart <lstewart@freebsd.org> Cc: freebsd-current@FreeBSD.org Subject: Re: [HEADS UP] Significant TCP work committed to head Message-ID: <20101112175838.EE9D81CC13@ptavv.es.net> In-Reply-To: Your message of "Fri, 12 Nov 2010 20:35:45 %2B1100." <4CDD0A71.7020708@freebsd.org>
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> Date: Fri, 12 Nov 2010 20:35:45 +1100 > From: Lawrence Stewart <lstewart@freebsd.org> > Sender: owner-freebsd-current@freebsd.org > > Hi All, > > A quick note that this evening, I made the first in a series of upcoming > commits to head that modify the TCP stack fairly significantly. I have > no reason to believe you'll notice any issues, but TCP is a complex > beast and it's possible things might crop up. The changes are mostly > related to congestion control, so the sorts of issues that are likely to > crop up if any will most probably be subtle and difficult to even > detect. The first svn revision in question is r215166. The next few > commits I plan to make will be basically zero impact and then another > significant patch will follow in a few weeks. > > If you bump into an issue that you think might be related to this work, > please roll back r215166 from your tree and attempt to reporoduce before > reporting the problem. Please CC me directly with your problem report > and post to freebsd-current@ or freebsd-net@ as well. > > Lots more information about what all this does and how to use it will be > following in the coming weeks, but in the meantime, just keep this note > in the back of your mind. For the curious, some information about the > project is available at [1,2]. > > Cheers, > Lawrence > > [1] http://caia.swin.edu.au/freebsd/5cc/ > [2] > http://www.freebsd.org/news/status/report-2010-07-2010-09.html#Five-New-TCP-Congestion-Control-Algorithms-for-FreeBSD Lawrence, Great news! I've been looking forward to having these congestion algorithms for a while and this is clearly a big step to getting there. Do you intend to MFC this for 8.2? -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
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