From owner-cvs-all@FreeBSD.ORG Thu Feb 16 21:22:49 2006 Return-Path: X-Original-To: cvs-all@freebsd.org Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A88B016A423 for ; Thu, 16 Feb 2006 21:22:49 +0000 (GMT) (envelope-from joao.barros@gmail.com) Received: from xproxy.gmail.com (xproxy.gmail.com [66.249.82.198]) by mx1.FreeBSD.org (Postfix) with ESMTP id CDC3643D53 for ; Thu, 16 Feb 2006 21:22:47 +0000 (GMT) (envelope-from joao.barros@gmail.com) Received: by xproxy.gmail.com with SMTP id s18so198811wxc for ; Thu, 16 Feb 2006 13:22:47 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Wq3hzdUDc+uBu5L64t6S13VoQvgvZAtRShp0ClN78Nty7X5l3ohXFfONzw20m8pjM6w5YsNkrGXzSWc/zup40Cwbea6WM/Di83YM5HDjCyf/Vip1+rk+P6viLEOp4b5TxDDUCap2J0ulAcLVmlXD33/Bka1vQCR0txI8ce12xaI= Received: by 10.70.130.7 with SMTP id c7mr161403wxd; Thu, 16 Feb 2006 13:22:47 -0800 (PST) Received: by 10.70.9.9 with HTTP; Thu, 16 Feb 2006 13:22:47 -0800 (PST) Message-ID: <70e8236f0602161322he6f9befw8c223784657a878e@mail.gmail.com> Date: Thu, 16 Feb 2006 21:22:47 +0000 From: Joao Barros To: Andre Oppermann In-Reply-To: <200602161938.k1GJc7t1048879@repoman.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <200602161938.k1GJc7t1048879@repoman.freebsd.org> Cc: cvs-src@freebsd.org, src-committers@freebsd.org, Robert Watson , Mohan Srinivasan , cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/netinet tcp_input.c tcp_subr.c tcp_timer.h tcp_var.h X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Feb 2006 21:22:49 -0000 On 2/16/06, Andre Oppermann wrote: > andre 2006-02-16 19:38:07 UTC > > FreeBSD src repository > > Modified files: > sys/netinet tcp_input.c tcp_subr.c tcp_timer.h > tcp_var.h > Log: > Have TCP Inflight disable itself if the RTT is below a certain > threshold. Inflight doesn't make sense on a LAN as it has > trouble figuring out the maximal bandwidth because of the coarse > tick granularity. > > The sysctl net.inet.tcp.inflight.rttthresh specifies the threshold > in milliseconds below which inflight will disengage. It defaults > to 10ms. > > Tested by: Joao Barros , > Rich Murphey > Sponsored by: TCP/IP Optimization Fundraise 2005 Thank you for your work on this. My thanks also to Robert Watson who didn't let this die and Mohan Srinivasan who followed up. -- Joao Barros