Date: Fri, 1 Jun 2001 08:13:19 +0200 (CEST) From: Blaz Zupan <blaz@si.FreeBSD.org> To: Mike Holling <myke@ees.com> Cc: <freebsd-stable@freebsd.org> Subject: Re: poor performance with FreeBSD and Windows ICS Message-ID: <Pine.BSF.4.33.0106010811170.22465-100000@titanic.medinet.si> In-Reply-To: <Pine.BSF.4.21.0105311921410.58525-100000@av.fks.lan>
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> 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
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