From owner-svn-src-user@FreeBSD.ORG Thu Mar 1 17:05:17 2012 Return-Path: Delivered-To: svn-src-user@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 39914106566B; Thu, 1 Mar 2012 17:05:17 +0000 (UTC) (envelope-from maxim.konovalov@gmail.com) Received: from mp2.macomnet.net (ipv6.irc.int.ru [IPv6:2a02:28:1:2::1b:2]) by mx1.freebsd.org (Postfix) with ESMTP id A1E1C8FC0A; Thu, 1 Mar 2012 17:05:16 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mp2.macomnet.net (8.14.5/8.14.5) with ESMTP id q21H56pT051017; Thu, 1 Mar 2012 21:05:06 +0400 (MSK) (envelope-from maxim.konovalov@gmail.com) Date: Thu, 1 Mar 2012 21:05:06 +0400 (MSK) From: Maxim Konovalov To: Michael Tuexen In-Reply-To: Message-ID: References: <201203011618.q21GIdww086427@svn.freebsd.org> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: src-committers@FreeBSD.ORG, Andre Oppermann , svn-src-user@FreeBSD.ORG Subject: Re: svn commit: r232345 - user/andre/tcp_workqueue/sys/netinet X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Mar 2012 17:05:17 -0000 > >> Author: andre > >> Date: Thu Mar 1 16:18:39 2012 > >> New Revision: 232345 > >> URL: http://svn.freebsd.org/changeset/base/232345 > >> > >> Log: > >> Increase the initial CWND to 10 segments as defined in IETF TCPM > >> draft-ietf-tcpm-initcwnd-03 discussing why the higher initial window > >> improves the overall performance of many web services without risking > >> congestion collapse. > >> > >> As long as it remains a draft it is not enabled by default and placed > >> under a sysctl marking it clearly as experimental: > >> net.inet.tcp.exprimental.initcwnd10 > >> > >> Linux as of kernel 3.0 has enabled it by default. > >> > > Wouldn't it be better to just let user to specify icwnd size? > In SCTP we have a sysctl which gives the IW in MSS... > Yes, that's why I'm asking mainly. -- Maxim Konovalov