From owner-freebsd-stable@FreeBSD.ORG Mon Feb 13 02:04:40 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 804531065670 for ; Mon, 13 Feb 2012 02:04:40 +0000 (UTC) (envelope-from pol@leissner.se) Received: from mailgate.leissner.se (mailgate.leissner.se [212.3.1.210]) by mx1.freebsd.org (Postfix) with ESMTP id DEFAE8FC0C for ; Mon, 13 Feb 2012 02:04:39 +0000 (UTC) Received: from mailgate.leissner.se (localhost [127.0.0.1]) by mailgate.leissner.se (8.14.5/8.14.5) with ESMTP id q1D1oHBH061528 for ; Mon, 13 Feb 2012 02:50:17 +0100 (CET) (envelope-from pol@leissner.se) Received: (from uucp@localhost) by mailgate.leissner.se (8.14.5/8.14.5/Submit) id q1D1oHw7061527 for ; Mon, 13 Feb 2012 02:50:17 +0100 (CET) (envelope-from pol@leissner.se) Received: from pol.leissner.se(192.71.29.17), claiming to be "pol-server.leissner.se" via SMTP by mailgate.leissner.se, id smtpd5f7egA; Mon Feb 13 02:50:14 2012 Received: from pol-server.leissner.se (localhost [127.0.0.1]) by pol-server.leissner.se (8.14.5/8.14.5) with ESMTP id q1D1oD5q072463 for ; Mon, 13 Feb 2012 02:50:13 +0100 (CET) (envelope-from pol@leissner.se) Received: (from pol@localhost) by pol-server.leissner.se (8.14.5/8.14.5/Submit) id q1D1oDGS072462 for freebsd-stable@freebsd.org; Mon, 13 Feb 2012 02:50:13 +0100 (CET) (envelope-from pol@leissner.se) X-Authentication-Warning: pol-server.leissner.se: pol set sender to pol@leissner.se using -f Date: Mon, 13 Feb 2012 02:50:13 +0100 From: Peter Olsson To: freebsd-stable@freebsd.org Message-ID: <20120213015013.GA71062@pol-server.leissner.se> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Subject: Tuning needed for slow RDP FreeBSD 9 -> Win 2008 R2 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Feb 2012 02:04:40 -0000 Desktop: FreeBSD 9.0-RELEASE amd64, generic kernel, running Openbox. My WAN is about 1.2 Mbps, and I try to run RDP to windows servers beyond my WAN. RDP to a Windows Server 2003 SP2 is fast and works without problems. RDP to a Windows Server 2008 R2 is very slow, and sometimes just disconnects. I tried changing a couple of net.inet.tcp sysctl: net.inet.tcp.recvbuf_max=10485760 net.inet.tcp.recvbuf_inc=65535 net.inet.tcp.sendbuf_max=10485760 net.inet.tcp.sendbuf_inc=65535 net.inet.tcp.recvbuf_auto=0 net.inet.tcp.sendbuf_auto=0 net.inet.tcp.sendspace=65536 net.inet.tcp.ecn.enable=1 net.inet.tcp.delayed_ack=0 net.inet.tcp.tso=0 net.inet.tcp.sack.enable=0 net.inet.tcp.path_mtu_discovery=0 Some in combination with others, and some by themselves. I also tried net.link.ifqmaxlen=1024 in /boot/loader.conf. Nothing has helped, do you have any ideas what I should tune? Thanks! -- Peter Olsson pol@leissner.se