Re: [Xenomai] "RT throttling" issue

[Jochen Behnke <jk.behnke@web.de>]

Hello Gilles,

in the meanwhile I added rt_timer_tsc as a second alternative to measure 
elapsed time. rt_timer_tsc returns values that are a somewhat greater 
than expected (around 39 ms instead of expected 20 ms), but still 
reasonable.

> On Thu, Nov 26, 2015 at 11:32:57AM +0100, JK.Behnke@web.de wrote:
>> Hello,
>>
>> in my xenomai 2.6.3 application I sporadically experience very long execution times of
>> a task that switches back and forth between secondary and primary mode.
>>
>> I added the following code to measure elapsed and cpu time
>> //------------- start code snippet ---------------
>> struct rusage rsgT1;
>> struct rusage rsgT2;
>> struct timeval tvT1;
>> struct timeval tvT2;
>> gettimeofday(&tvT1, NULL);
>
> Do you observe the same problem with Xenomai 2.6 git head, if you
> use clock_gettime(CLOCK_HOST_REALTIME) instead of gettimeofday, at
> least for threads running in primary mode ?
>

I'll give Xenomai 2.6 git head a try.
Thanks for your help.

Regards
Jochen