[etherlab-users] Datagram SKIPPED x Times

[Andreas Stewering-Bone]

Hello Mike,

please see

# KERNELGIT=git://git.kernel.org/pub/scm/linux/kernel/git
# git clone $KERNELGIT/clrkwllms/rt-tests.git


Use cyclictest.


Greatings

Andreas


Am 23.03.2012 00:18, schrieb Mike O'Connor:
> 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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>    


Mit freundlichem Gruß

Andreas Stewering-Bone

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