[Xenomai-help] rt_task_slice() Behaviour

[Xenomai-help] rt_task_slice() Behaviour

[Thomas, Brieuc (GE Healthcare)]

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Hello,

 

I read everywhere than Xenomai scheduler supports round-robin policies,
but I don't find any explanation or example about how to manage it.

I used a Native API, my configuration is:
status=periodic:setup=202:tickval=1000000:..

And I would like to have a RR behaviour with a time slice to 10ms, and
the only function than I found to do that is "rt_task_slice(&task, 10)"
: but there is no behaviour change.

I tried to use xnpod_activate_rr, but I can't include pod.h without any
errors. I think it's a stupid question but what I forget to do?

 

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Re: [Xenomai-help] rt_task_slice() Behaviour

[Philippe Gerum]

Thomas, Brieuc (GE Healthcare) wrote:
> Hello,
> 
>  
> 
> I read everywhere than Xenomai scheduler supports round-robin policies, 
> but I don't find any explanation or example about how to manage it.
> 
> I used a Native API, my configuration is: 
> status=periodic:setup=202:tickval=1000000:..
> 
> And I would like to have a RR behaviour with a time slice to 10ms, and 
> the only function than I found to do that is "rt_task_slice(&task, 10)" 
> : but there is no behaviour change.
> 
> I tried to use xnpod_activate_rr, but I can't include pod.h without any 
> errors. I think it's a stupid question but what I forget to do?
> 
>  
> 

rt_task_set_mode(0,T_RRB,NULL) from the task that wants to undergo the 
RR scheduling, after having called rt_task_slice to setup the time credit.

-- 

Philippe.