ethernet bandwith problems

Eric Anderson anderson at centtech.com
Tue Nov 29 16:42:55 GMT 2005


Josh Paetzel wrote:
> On Tuesday 29 November 2005 09:50 am, Eric Anderson wrote:
> 
>>Josh Paetzel wrote:
>>
>>>On Sunday 27 November 2005 08:08 pm, Eric Anderson wrote:
>>>
>>>>LeifEriccson wrote:
>>>>
>>>>>hi there
>>>>>
>>>>>i got a wrap-board from pcengines(.ch) with an amd geode cpu and
>>>>>two ethernet interfaces. this board is working with freebsd 6.0
>>>>>and the ethernet interfaces with the sis driver. actually i did
>>>>>some tests with the iperf tool, and i wondered why i just get a
>>>>>perfomance up 37 MBit/s. maybe somebody of you got a clue.
>>>>
>>>>37MBit/s isn't too bad for a geode I don't think..
>>>>
>>>>Eric
>>>
>>>37 Megabytes per second is reasonable.  At that point you are
>>>disk-bound
>>>
>>>37 megabits per second means that there is something wrong.
> 
> 
> 
> 
>>37Megabytes per second is over 100mbit speeds.
>>
>>37Megabits per second is roughly 4Megabytes per second, about 40%
>>of 100megabit speeds. Seems a little low, but 37Megabytes per
>>second isn't quite possible over 100megabit.
>>
>>Eric
> 
> 
> Yes, 37 Megabytes/sec is over 100mbps speeds....Weren't we talking 
> about gigE ??

Since it was a sis chipset, I assumed it wasn't, because I don't think 
it was explicitly mentioned.


Eric



-- 
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Eric Anderson        Sr. Systems Administrator        Centaur Technology
Anything that works is better than anything that doesn't.
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