Date: Tue, 23 Oct 2007 14:28:46 +0200 From: Stefan Ehmann <shoesoft@gmx.net> To: freebsd-current@freebsd.org Cc: "Aryeh M. Friedman" <aryeh.friedman@gmail.com> Subject: Re: an interesting observation on network performence Message-ID: <200710231428.47376.shoesoft@gmx.net> In-Reply-To: <471D9658.4060005@gmail.com> References: <471D9658.4060005@gmail.com>
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On Tuesday 23 October 2007 08:36:08 Aryeh M. Friedman wrote: > I get better network performance on XP running under qemu on 8-current. > (sorry don't have hard numbers but it roughly times better on p2p > apps). Here is the config: > > Host OS: > > 8-current > amd64 > 4gb ram > > bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu > 1500 > ether 62:4e:c7:60:d0:a0 > id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15 > maxage 20 holdcnt 6 proto rstp maxaddr 100 timeout 1200 > root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0 > member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > member: re0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > tap0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric > 0 mtu 1500 > ether 00:bd:43:f2:02:00 > inet6 fe80::2bd:43ff:fef2:200%tap0 prefixlen 64 scopeid 0x5 > Opened by PID 14839 > > sudo qemu -net nic -net tap -hda test -localtime -m 1024 -soundhw all > > Host p2p program: deluge (latest) > > Guest OS: > > XP Pro SP2 (all updates as of 1/1/2007) > > Guest p2p program: uTorrent 1.7 - torrent speeds can vary greatly. - you're using two different clients that probably use different algorithms for connection management You could try utorrent under wine (if that works) or a cross platform client. Since the guest OS uses the same network stack, I see no network performance per se. -- Stefan
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