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maximum network performance? [was: Re: bad nfs performance [was: Re: Promise PDC20268]]
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: maximum network performance? [was: Re: bad nfs performance [was: Re: Promise PDC20268]]
- From: Manuel Zamora <manuel_(_at_)_zamora_(_dot_)_de>
- Date: Mon, 11 Feb 2002 14:23:51 +0100
I tracked down the problems, as there were two:
First I patched the linux kernel with some experimental nfs drivers... and
wow, performance increased to the level ftp gave me - 3-4megs/second. Not
THAT much, but much better...
Then, I exchanged the nic, threw out the allied telesyn card (chip afaik
rtl8139) and put an 3com 905TX card in. performance increased to
5-6megs/second :) (with ftp/nfs/smb/http)
With an old benchmark utility ttcp, i tested the network performance i could
get between these two machines. With tcp i got ~5-6megs/second and with udp
~9 megs/second. Why is tcp that slow? I am not a network expert, is that
transfer rate normal? If not, how can I try to increase it? (system
description in my first post, "Promise PDC20268").
Manuel Juan Zamora-Morschhäuser http://www.zamora.de
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