[Novalug] ethernet/network performance/SUSE 10.2

Ken Kauffman kkauffman@headfog.com
Sat Feb 3 09:33:28 EST 2007


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ARGH! One more correction.  It's nvnet is not open source -- I meant
"source" as in resource location.  Anyway, many people have had problems
with the forcedeth.  This is the binary from NVIDIA.  Sorry for all the
messages.

K

Kevin Kitts wrote:
> Just curious,
>   Can you tell me what eth1 sky2 does? There is only 1 ethernet card in
> this computer - typically called eth0 I think. Also, how can I tell if
> forcedeth module is in use - and, exactly what is forcedeth?
> 
> Kevin
> 
> On 2/2/07, *Ken Kauffman* <kkauffman@headfog.com
> <mailto:kkauffman@headfog.com>> wrote:
> 
> 
> Also - check the modules file.  /etc/modprobe.conf and try adding these
> entries and add forcedeth to /etc/modprobe.d/blacklist
> 
> alias eth0 nvnet
> alias forcedeth off
> alias eth1 sky2
> options nvnet hwmode=2
> options nvnet mtu=1492
> options nvnet seg_offload=0
> 
> K
> 
> On Fri, February 2, 2007 12:16, Kevin Kitts wrote:
>> Hi All,
>>   I have an Nvidia based/AMD 4800 X2 system that dual boots SUSE
> 10.2 and
>> Windows XP. Each OS has it's own, identical, disk to start up
> from. Each
>> OS
>> also runs Firefox 2.0. I've downloaded and installed the latest Nvidia
>> graphics drivers for Linux - they're quite nice - they give you
> similar
>> capabilities in dealing with dual screens that are available under XP.
> 
>> I have not done scientific tests - but I am willing to bet money
> on the
>> fact
>> that Windows XP provides snappier performance when surfing the web
> with
>> Firefox 2.0 than Linux does. I take no pleasure in saying that -
> because
>> I'd
>> hoped to do most casual web surfing on Linux as a way to limit
> exposure to
>> the various security maladies that Windows XP exposes one to.
> 
>> Long ago, I' did some research which I have now lost, that seemed to
>> indicate that certain Nvidia based motherboards that used on board
>> Ethernet
>> (which I am using) had issues with certain Linux kernels. The
> computer is
>> a
>> Shuttle SN25P with an NVIDIA nForce4
>> Ultra<http://nvidia.com/page/nforce4.html>
>> motherboard. I'd hoped that by upgrading to SUSE 10.2 that those
> issues
>> would get ironed out without me having to dig - but that does not
> seem to
>> be
>> the case...
> 
>> Does anyone have any suggestion on how I could:
> 
>> 1) Verify or refute that there is an actual performance difference -
>> possibly Ethernet related - between SUSE 10.2 and XP
>> 2) Take steps to remedy the performance difference
> 
>> Any hints, tips or pointers to additional information will be most
>> appreciated.
> 
>> Thanks,
> 
>> Kevin
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> 
> 
> 
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