Re: 3c59x very slow with 2.6.X

[Frank Steiner]

Bernd Schubert wrote:
> Hello,
>
> somehow the network speed is reduced to 14MBit with 2.6.X on my system, with 
> 2.4.X it has full 100MBit.
> As all our systems boot diskless this is really annoying and I will reboot 
> 2.4.27 soon.
>
> euklid:~# nttcp -T hamilton2
>      Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
> l  8388608    4.73    4.60     14.2004     14.5911    2048    433.36     445.3
> 1  8388608    4.73    0.03     14.1984   2236.9621    6145   1300.12  204833.3


No problem here: both machines have a 3com 3c905CX-TX and run kernel 2.6.7.

zassenhaus /root# nttcp -T riemann
     Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
l  8388608    0.71    0.01     94.9903   7457.3690    2048   2898.87  227580.8
1  8388608    0.71    0.04     93.9984   1598.0964    5794   8115.57  137975.4

The driver is compiled into the kernel, not as module. Could that make a
difference for you?

cu,
Frank

--
Dipl.-Inform. Frank Steiner   Web:  http://www.bio.ifi.lmu.de/~steiner/
Lehrstuhl f. Bioinformatik    Mail: http://www.bio.ifi.lmu.de/~steiner/m/
LMU, Amalienstr. 17           Phone: +49 89 2180-4049
80333 Muenchen, Germany       Fax:   +49 89 2180-99-4049
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