On Sep 16, Geir.I.Jensen@Runit.Sintef.No wrote
> Hi,
> 
> My network performance is way below what a Linux box collogue of mine
> achieves (ok, so its not the same underlying hardware, but...)
> 
> In normal use, the throughput is under 100KB/sec on a 100Mb channel!
> There must be something wrong somewhere. I wrote a script to test the
> performance for various packet sizes. The resulting graphs are located
> at (I didn't want to bloat the list): 
> 

You didn't tell us what driver you use.
I've seen this on our brand new switch with a DEC 21140-based board.
Thye problem was in the autonegotiation of the media between the
board and the switch: one used 100Mbs full duplex and the other
100Mbs half-duplex. This setup had good performances with NFS but very bad
(about 100KB/sec, as you) over TCP.
Getting both side in sync with hard-wired media config solved the problem.

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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