picking next running process in CFS scheduler

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Hi all

I've tried to check related scheduler code and I've got impression
that in CFS scheduler, dynamic priority level no longer determines
which process will be picked up by the scheduler. Instead, it is now
the waiting time that becomes the primary factor to watch...the longer
it waits, thus it is treated "more unfair"...then it will be picked
ASAP. Is this correct?

If it is correct, then is it still useful to assign different nice
level to mark the importance of a process?

Thanks in advance for your help.

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer
blog: the-hydra.blogspot.com

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