From: Bernd Schubert <bernd-schubert@web.de>
To: Frank Steiner <fsteiner-mail@bio.ifi.lmu.de>
Cc: Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: 3c59x very slow with 2.6.X
Date: Thu, 5 Aug 2004 11:00:47 +0200 [thread overview]
Message-ID: <200408051100.48267.bernd-schubert@web.de> (raw)
In-Reply-To: <4111CD14.30601@bio.ifi.lmu.de>
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
prev parent reply other threads:[~2004-08-05 9:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-04 20:03 3c59x very slow with 2.6.X Bernd Schubert
2004-08-05 6:00 ` Frank Steiner
2004-08-05 7:41 ` Måns Rullgård
2004-08-05 9:00 ` Bernd Schubert [this message]
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