check_idle_saturated(self, ws: distributed.scheduler.WorkerState, occ: ctypes.c_double = -1.0)
The scheduler keeps track of workers that are ..
Saturated: have enough work to stay busy
Idle: do not have enough work to stay busy
They are considered saturated if they both have enough tasks to occupy all of their threads, and if the expected runtime of those tasks is large enough.
This is useful for load balancing and adaptivity.
Update the status of the idle and saturated state
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