TBPM procedure
A requester column is allocated when a new task is created and the column is deleted when task terminates
Utilization set to zero but updated on issue of a request. The PM evaluates the utilization in the process scheduler.
In lightly loaded system:
- Sparse requests will not cause the PM to keep a device in working state long since P( r ) is small for this requester
With heavy workload:
- Does not use device frequently since the PM shuts the device after its use ( U(d) is small)
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