Hi, What was the reason for changing the CFS mechanism from fair_clock/wait_runtime to vruntime? What were the kind of workloads where the fairclock approach faired badly ? Also, when adding a blocked task to the runqueue (rbtree), why is it's vruntime set to less than min_vruntime ? This means it would preempt the currently running process. If we have some processes which run for some (very less) time and get blocked repeatedly, won't the processes at the end of runqueue starve ... because some or the other blocked process gets unblocked and gets the cpu (as vruntime is lesser than min_vruntime). -- Regards, Sukanto Ghosh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
