Messages in this thread | | | Date | Sun, 10 Aug 2003 08:06:59 +0200 | From | Mike Galbraith <> | Subject | Re: [patch] SCHED_SOFTRR starve-free linux scheduling policy ... |
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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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