From owner-freebsd-stable Thu May 31 23:13:24 2001 Delivered-To: freebsd-stable@freebsd.org Received: from titanic.medinet.si (titanic.medinet.si [212.18.42.5]) by hub.freebsd.org (Postfix) with ESMTP id C603A37B423 for ; Thu, 31 May 2001 23:13:21 -0700 (PDT) (envelope-from blaz@si.FreeBSD.org) Received: by titanic.medinet.si (Postfix, from userid 1000) id 0753855404; Fri, 1 Jun 2001 08:13:19 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by titanic.medinet.si (Postfix) with ESMTP id EB38D55402; Fri, 1 Jun 2001 08:13:19 +0200 (CEST) Date: Fri, 1 Jun 2001 08:13:19 +0200 (CEST) From: Blaz Zupan X-X-Sender: To: Mike Holling Cc: Subject: Re: poor performance with FreeBSD and Windows ICS In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > I've got a DirecPC satellite link, which unfortunately forces me to use a > Win98 box running Microsoft's Internet Connection Sharing to get the LAN > online. Apparently Windows and Linux boxes are able to use ICS at full > thruput (60 kbyte/sec and up) but my FreeBSD boxes can only get up to 25 > or so steady-state, with an initial surge at the start. I've confirmed > the behavior on two different FreeBSD systems (4.2-RELEASE and > 4.3-RELEASE). The 4.2 box is triple boot, and both WinME and Linux on > that system achieve full thruput. Presumably there's some difference in > the packet flow among the platforms, anyone run into this problem before? Increase the TCP window size to at least the value that Windows has by default: sysctl -w net.inet.tcp.recvspace=65536 sysctl -a net.inet.tcp.sendspace=65536 You need a higher TCP windows size if you want to take full advantage of high latency links like satellite links. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message