> > I would expect somewhat more throughput.....
> 
> Can your disk can keep up with that? Those 2.5" driver used in old  
> powerbooks aren't exactly fast by today's standard. If you want to  
> measure pure network throughput use something like ttcp that doesn't  
> hammer the disk.

See also comments in src/sys/dev/ic/rtl81x9.c:
http://cvsweb.NetBSD.org/bsdweb.cgi/src/sys/dev/ic/rtl81x9.c?rev=1.81
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Izumi Tsutsui