Re: [RFC 4/4] Documentation/scheduler/sched-deadline.txt: add some references

From: Peter Zijlstra
Date: Wed Apr 08 2015 - 10:43:31 EST

On Wed, Apr 08, 2015 at 01:59:40PM +0200, Luca Abeni wrote:
> + As seen, enforcing that the total utilisation is smaller than M does not
> + guarantee that global EDF schedules the tasks without missing any deadline
> + (in other words, global EDF is not an optimal scheduling algorithm). However,
> + a total utilisation smaller than M is enough to guarantee that non real-time
> + tasks are not starved and that the tardiness of real-time tasks has an upper
> + bound[12] (as previously noticed). Different bounds on the maximum tardiness

^^^ noted?

> + experienced by real-time tasks have been developed in various papers[13,14],
> + but the theoretical result that is important for SCHED_DEADLINE is that if
> + the total utilisation is smaller or equal than M then the response times of
> + the tasks are limited.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at