From owner-svn-src-user@FreeBSD.ORG Thu Mar 1 17:02:40 2012 Return-Path: Delivered-To: svn-src-user@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3C4FD106566C; Thu, 1 Mar 2012 17:02:40 +0000 (UTC) (envelope-from tuexen@fh-muenster.de) Received: from mail-n.franken.de (drew.ipv6.franken.de [IPv6:2001:638:a02:a001:20e:cff:fe4a:feaa]) by mx1.freebsd.org (Postfix) with ESMTP id CAE348FC0C; Thu, 1 Mar 2012 17:02:39 +0000 (UTC) Received: from [192.168.1.2] (p5481B202.dip.t-dialin.net [84.129.178.2]) (Authenticated sender: macmic) by mail-n.franken.de (Postfix) with ESMTP id 34C821C0B4611; Thu, 1 Mar 2012 18:02:37 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1257) Content-Type: text/plain; charset=us-ascii From: Michael Tuexen In-Reply-To: Date: Thu, 1 Mar 2012 18:02:36 +0100 Content-Transfer-Encoding: 7bit Message-Id: References: <201203011618.q21GIdww086427@svn.freebsd.org> To: Maxim Konovalov X-Mailer: Apple Mail (2.1257) 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 17:02:40 -0000 On Mar 1, 2012, at 5:59 PM, Maxim Konovalov wrote: > Hi Andre, > > On Thu, 1 Mar 2012, 16:18-0000, Andre Oppermann wrote: > >> 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... Best regards Michael > > -- > Maxim Konovalov >