Date: Mon, 12 Nov 2001 10:49:23 -0700 From: Nate Williams <nate@yogotech.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Nate Williams <nate@yogotech.com>, stable@FreeBSD.ORG, jayanth@FreeBSD.ORG Subject: Re: TCP NewReno causing wild performance fluctuations Message-ID: <15344.2979.298398.315095@caddis.yogotech.com> In-Reply-To: <200111112134.fABLYXK47890@apollo.backplane.com> References: <15340.20191.441648.662113@caddis.yogotech.com> <200111112134.fABLYXK47890@apollo.backplane.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> I think you should MFC this, Nate. I too think it should be merged, but I wanted to get Jayanth's feedback first. Nate > > :We've been using FreeBSD boxes as our reference ftp servers at work, and > :because of the recent security issues, I've went through and updated a > :number of our public boxes from 3.x -> 4.4. > : > :However, we're seeing significant variations in ftp throughput from > :boxes that are directly connected on the lan segment. If I disable the > :New Reno code, things go back to normal (ie; no fluctuations). > : > :I went through the logfiles, and it turns out there has been one fix to > :the code that hasn't been merged into stable. > : > :Rev1.139 in tcp_input.c has not (yet) been merged into -stable. > :... > : > :I hand-merged this change back onto my box, installed a new kernel, and > :now in my *very* minor testing things appear to be more normal. My > :question is should this fix be merged into stable, and would the lack of > :this bugfix explain my performance results? > : > :Unfortunately, I don't haven't gotten any tcpdump outputs to analyze > :what was going on, but I didn't want this bugfix to slip through the > :cracks. > : > :Nate > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?15344.2979.298398.315095>