For a while now, I've started studying the power aware scheduling problem.CPUIDLE and CPUFREQ are used for cpu power saving when related CPU is not busy.
And like many other rookies out there I took all the lkml mails related
and read them all (well, almost all) and I saw that there are some
debating on the implementation.I even look over the implementation
proposed of Preeti U Murthy. I also worked (just for fun) for a while on
some ideas of my own (nothing worth sharing, yet) but I have problem
understanding the design requirements. Here is one.
Some of you (even Ingo) said that the scheduler should be the one to
manage the cpu P/C states. In this case the governors of the cpuidle and
cpufreq would not make any sense anymore. Does that mean they will not
be a part of this scheduling solution anymore?
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