How to evaluate scheduling algorithm?

There are many possible criteria:
  • CPU Utilization: Keep CPU utilization as high as possible. (What is utilization, by the way?).
  • Throughput: number of processes completed per unit time.
  • Turnaround Time: mean time from submission to completion of process.
  • Waiting Time: Amount of time spent ready to run but not running.
  • Response Time: Time between submission of requests and first response to the request.
  • Scheduler Efficiency: The scheduler doesn't perform any useful work, so any time it takes is pure overhead. So, need to make the scheduler very efficient.


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