Re: Latency problem in rtai-4.0 with kernel 3.5.7

hi Paolo,
     Thanks for reply.

     i run latency test alone. it shows overrun count 0 but whenever i 
load my application overrun start to increment.

     Please find attached latency test result.

-- 
Thanks & Regards,

*Sameer Zungare*
+91 9021918228
*/iASYS/*
*Product Development Center*
401 A/2, Nano Space
Baner-Pashan link road, Baner
Pune 411045, India
Ph. +91 96234 47255 ext. xxx
www.iasys.co.in


On 04/05/2016 8:36 PM, Paolo Mantegazza wrote:
> You should run the latency test alone and check if the 4 ms latency 
> appears periodically.
> Paolo
>
> On 04/05/2016 04:49 PM, Sameer wrote:
>> hi,
>>
>> Please find attached latency test result.
>>
>> Iam facing latency problem in my real time application.I have 4 real 
>> time task exucting in user space at 10ms & one kernel module task 
>> which is executing at 1ms.
>>
>> my application is randomly stuck for 2-3 sec. sometimes greater than 
>> this also. simulataneously i run latency test it also shows overruns 
>> count more than 200.it is not deterministic behaviour.
>> my current machine has below configuration
>>
>> 1.Ubunbtu-12.04
>> 2.RTAI-4.0
>> 3.kernel 3.5.7
>> 4.Cpu core -Intel Pentium 4.
>> 5.Timer-tsc.
>> 6.No. of core-1.
>>
>> The same applications work deterministic in my older system which has 
>> kernel 2.6.23 & rtai-3.9 & centos distro with same PC.
>>
>>
>> Is there any problem with kernel or rtai or ubuntu or kernel 
>> configuaration?
>>
>> Please let me know any solution for this problem.
>> -- 
>> Thanks & Regards,
>>
>> *Sameer Zungare*
>> +91 9021918228
>> */iASYS/*
>> *Product Development Center*
>> 401 A/2, Nano Space
>> Baner-Pashan link road, Baner
>> Pune 411045, India
>> Ph. +91 96234 47255 ext. xxx
>> www.iasys.co.in
>
>
>
>

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