[etherlab-users] [etherlab-dev] Datagram SKIPPED x Times

Mike O'Connor mike at oeg.com.au
Fri Mar 23 00:18:31 CET 2012


Hi Andreas

Because we are trying to create a generic system, I'm trying to identify
the maximum performance (this project will end up on githhub) if the max
for Intel is X and the max for Realtek is Y then I want to make this
clear in the documentation.

The current testing is use the included example which come with the
Etherlab example with only the changes needed to talk to our Beckhoff IO
(2 bus couplers and 3 IO modules). How does one check the latency of the
system ?

Cheers
mike



On 22/03/12 11:39 PM, Andreas Stewering-Bone wrote:
> Hello Mike,
>
>
> You can use this boxes with the Intel Chipset.
>
> But what do you want to do,
>
> control a mechanical system, you will need cylcletimes about 1kHz
>
> mechanical measuring, max 4kHz I think
>
> also with an atom board you can reach max up to 10 kHz, but this
> depends on your software.
>
> You said, you build up an userspace example.
> Did you check on overruns in the software (latency of the system)?
>
> Greatings
>
> Andreas
>
>
> Am 22.03.2012 13:11, schrieb Mike O'Connor:
>> Hi Andreas
>>
>> On 22/03/12 7:30 PM, Andreas Stewering-Bone wrote:
>>   
>>> Hello Mike
>>>
>>> Please use ether etherlab-user mailing list for such things.
>>>      
>> I did and got no response and it was holding up our project to develop
>> an open source system which uses an event/state design without having to
>> use the upper level tools in the Etherlab system. (nothing against the
>> Etherlab system but it is just to complicated for our needs)
>>
>> Thanks for the information, wish I had known this earlier as I have all
>> ready purchased some sweet 6 port atom embedded boxes for the project.
>>
>> O well, live and learn.
>>
>> Mike
>>    
>
>
> Mit freundlichem Gruß
>
> Andreas Stewering-Bone
>




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