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SubjectRe: [patch] SCHED_SOFTRR starve-free linux scheduling policy ...
At 12:58 AM 8/10/2003 +0100, Daniel Phillips wrote:
>On Saturday 09 August 2003 18:47, Mike Galbraith wrote:
> > 1. SCHED_SOFTRR tasks can disturb (root) SCHED_RR/SCHED_FIFO tasks as is.
>
>What do you mean by "disturb"?

Preempt, and/or occupy cpu space which would otherwise be available for the
root realtime task. If a SCHED_SOFTRR task or tasks share the same queue
with an SCHED_RR task, or occupy a higher queue, runtime of the
SCHED_SOFTRR tasks[s] will have an effect on the root realtime task. OTOH,
if SCHED_SOFTRR queues were below the 'full potency' realtime queues, they
would be able to neither preempt, not round-robin with the root authorized
realtime task.

-Mike

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