Date: Wed, 16 Jun 2010 14:30:17 +1000 From: Lawrence Stewart <lstewart@freebsd.org> To: Igor Sysoev <is@rambler-co.ru> Cc: freebsd-net@freebsd.org Subject: Re: net.inet.tcp.slowstart_flightsize in 8-STABLE Message-ID: <4C185359.6060509@freebsd.org> In-Reply-To: <20100512124702.GJ2679@rambler-co.ru> References: <20100512124702.GJ2679@rambler-co.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi Igor, I'm sorry I missed this way back when you sent it. On 05/12/10 22:47, Igor Sysoev wrote: > It seems that net.inet.tcp.slowstart_flightsize does not work in 8-STABLE. > For a long time I used slowstart_flightsize=2 on FreeBSD 4, 6, and 7 hosts. > However, FreeBSD-8 always starts with the single packet. > I saw this on different versions of 8-STABLE since 8 Oct 2009 till > 04 Apr 2010. > Can you send me the output of "sysctl net.inet.tcp" from the box in question, confirm your method for determining how many packets are actually used to start a connection and please describe any symptoms of the problem. My guess is delayed acking is causing you some grief? Cheers, Lawrence
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4C185359.6060509>