Re: [PATCH 2/2] sched/deadline: Throttle a constrained deadline task activated after the deadline

From: Daniel Bristot de Oliveira
Date: Mon Feb 13 2017 - 10:49:56 EST


On 02/13/2017 04:33 PM, Steven Rostedt wrote:
>> +static inline bool dl_is_constrained(struct sched_dl_entity *dl_se)
>> +{
>> + return dl_se->dl_runtime < dl_se->dl_period;
>> +}
>> +
> Is it ever appropriate for a dl task to have runtime == period? What
> purpose would that serve? Just run the task as FIFO higher than
> everything else.
>
> Or was this suppose to be dl_deadline < dl_period?

Oooooops, my bad :-(, this was supposed to be dl_deadline < dl_period.

I will send a v2 fixing it, along with the problem in the comment that
peterz mentioned before.

Thanks Steven!

-- Daniel