Are you sure that the first task is still running?
On Wed, May 09, 2001 at 11:47:38AM +0200, S?bastien GAUME wrote:
> Hello !
>
> I've come across surprising results while using the nanosleep function
> in my realtime tasks. I wrote a program in which two tasks are created.
> Both are periodic (running under the oneshot mode, period = 5 ms), are
> supposed to start at the same time and should last 2 ms. One has a
> greater priority level then the other. And I'm aiming to check if the
> realtime scheduling works well.
>
> What really surprises me is that the task with the lower priority level
>
> always starts about 20 us after the first task ! At that moment, this
> task is not supposed being able to wake up and to start...
>
> I feel the impression that the realtime tasks behave as if there is no
> realtime scheduling, although the fifo realtime scheduling should be on
> and work.
>
> So, I you have any idea of what the problem could be,...
>
> Thank you
>
> Sebastien
>
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