Messages in this thread | | | Date | Fri, 21 Jun 2013 08:38:31 -0700 | From | Arjan van de Ven <> | Subject | Re: power-efficient scheduling design |
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On 6/21/2013 1:50 AM, Morten Rasmussen wrote: >> ypically. > A hint when a task is moved to a new cpu is too late if the migration > shouldn't have happened at all. If the scheduler knows that the cpu is > able to switch to a higher p-state it can decide to wait for the p-state > change instead of migrating the task and waking up another cpu. >
oops sorry I misread your mail (lack of early coffee I suppose)
I can see your point of having a thing for "did we ask for all the performance we could ask for" prior to doing a load balance (although, for power efficiency, if you have two tasks that could run in parallel, it's usually better to run them in parallel... so likely we should balance anyway)
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