Re: 3c59x very slow with 2.6.X

[Bernd Schubert]

On Thursday 05 August 2004 08:00, you wrote:
> 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?

Its also compiled into the kernel on our systems. Here are the numbers with 
2.4.27-rc5:

euklid:~# nttcp -T hamilton2

     Bytes  Real s   CPU s Real-MBit/s  CPU-MBit/s   Calls  Real-C/s   CPU-C/s
l  8388608    0.71    0.04     94.9401   1677.7216    2048   2897.34   51200.0
1  8388608    0.71    0.03     94.1146   2236.9621    5797   8129.81  193233.3

Cheers,
	Bernd
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