From owner-cvs-src-old@FreeBSD.ORG Tue Feb 1 06:17:34 2011 Return-Path: Delivered-To: cvs-src-old@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1DA0B1065696 for ; Tue, 1 Feb 2011 06:17:34 +0000 (UTC) (envelope-from lstewart@FreeBSD.org) Received: from repoman.freebsd.org (repoman.freebsd.org [IPv6:2001:4f8:fff6::29]) by mx1.freebsd.org (Postfix) with ESMTP id 096B98FC22 for ; Tue, 1 Feb 2011 06:17:34 +0000 (UTC) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.4/8.14.4) with ESMTP id p116HXiv040682 for ; Tue, 1 Feb 2011 06:17:33 GMT (envelope-from lstewart@repoman.freebsd.org) Received: (from svn2cvs@localhost) by repoman.freebsd.org (8.14.4/8.14.4/Submit) id p116HXQf040681 for cvs-src-old@freebsd.org; Tue, 1 Feb 2011 06:17:33 GMT (envelope-from lstewart@repoman.freebsd.org) Message-Id: <201102010617.p116HXQf040681@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to lstewart@repoman.freebsd.org using -f From: Lawrence Stewart Date: Tue, 1 Feb 2011 06:17:00 +0000 (UTC) To: cvs-src-old@freebsd.org X-FreeBSD-CVS-Branch: HEAD Subject: cvs commit: src/sys/modules/cc Makefile src/sys/modules/cc/cc_vegas Makefile src/sys/netinet/cc cc_vegas.c X-BeenThere: cvs-src-old@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: **OBSOLETE** CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Feb 2011 06:17:34 -0000 lstewart 2011-02-01 06:17:00 UTC FreeBSD src repository Modified files: sys/modules/cc Makefile Added files: sys/modules/cc/cc_vegas Makefile sys/netinet/cc cc_vegas.c Log: SVN rev 218152 on 2011-02-01 06:17:00Z by lstewart Import a clean-room implementation of the VEGAS congestion control algorithm based on the paper "TCP Vegas: end to end congestion avoidance on a global internet" by Brakmo and Peterson. It is implemented as a kernel module compatible with the recently committed modular congestion control framework. VEGAS uses network delay as a congestion indicator and unlike regular loss-based algorithms, attempts to keep the network operating with stable queuing delays and no congestion losses. By keeping network buffers used along the path within a set range, queuing delays are kept low while maintaining high throughput. In collaboration with: David Hayes and Grenville Armitage Sponsored by: FreeBSD Foundation Reviewed by: bz and others along the way MFC after: 3 months Revision Changes Path 1.4 +2 -1 src/sys/modules/cc/Makefile 1.1 +9 -0 src/sys/modules/cc/cc_vegas/Makefile (new) 1.1 +308 -0 src/sys/netinet/cc/cc_vegas.c (new)