From owner-freebsd-net@FreeBSD.ORG Thu Aug 12 13:34:51 2010 Return-Path: Delivered-To: net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C588310656A6 for ; Thu, 12 Aug 2010 13:34:51 +0000 (UTC) (envelope-from oppermann@networx.ch) Received: from c00l3r.networx.ch (c00l3r.networx.ch [62.48.2.2]) by mx1.freebsd.org (Postfix) with ESMTP id 35C308FC25 for ; Thu, 12 Aug 2010 13:34:50 +0000 (UTC) Received: (qmail 92783 invoked from network); 12 Aug 2010 12:04:29 -0000 Received: from localhost (HELO [127.0.0.1]) ([127.0.0.1]) (envelope-sender ) by c00l3r.networx.ch (qmail-ldap-1.03) with SMTP for ; 12 Aug 2010 12:04:29 -0000 Message-ID: <4C63F879.9040409@networx.ch> Date: Thu, 12 Aug 2010 15:34:49 +0200 From: Andre Oppermann User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: Steven Hartland References: <4C63E921.4040803@networx.ch> <08314D938871496DBCB5DFF19007F0BE@multiplay.co.uk> In-Reply-To: <08314D938871496DBCB5DFF19007F0BE@multiplay.co.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: eschoedler@viavale.com.br, karl@khakkinen.com, bug-followup@freebsd.org, net@freebsd.org Subject: Re: kern/141314: Network Performance has decreased by 30%[regression] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Aug 2010 13:34:51 -0000 On 12.08.2010 15:04, Steven Hartland wrote: > Also if you have a large kern.ipc.maxsockbuf set try removing it > we experienced a significant slow down when moving from 7 to 8 with > large values for kern.ipc.maxsockbuf. This may be an unrelated problem with window scaling and broken firewalls. > Regards > Steve > ----- Original Message ----- From: "Andre Oppermann" > > >> Karl, >> >> What is the RTT (ping time) between your test servers? >> >> Please try again with the following sysctl disabled: >> sysctl net.inet.tcp.inflight.enable=0 > > > ================================================ > This e.mail is private and confidential between Multiplay (UK) Ltd. and > the person or entity to whom it is addressed. In the event of > misdirection, the recipient is prohibited from using, copying, printing > or otherwise disseminating it or any information contained in it. > In the event of misdirection, illegible or incomplete transmission > please telephone +44 845 868 1337 > or return the E.mail to postmaster@multiplay.co.uk.