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Operating Systems
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answerhappygod
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Operating Systems
Operating Systems
5.17 Consider the following set of processes, with the length of the CPU burst given in milliseconds: Process P₁ P₂ P3 P4 P5 Burst Time 5 3 1 7 4 Priority 4 1 2 2 3 The processes are assumed to have arrived in the order P₁, P2, P3, P4, P5, all at time 0. a. Draw four Gantt charts that illustrate the execution of these pro- cesses using the following scheduling algorithms: FCFS, SJF, non- preemptive priority (a larger priority number implies a higher priority), and RR (quantum = 2). b. What is the turnaround time of each process for each of the scheduling algorithms in part a? c. What is the waiting time of each process for each of these schedul- ing algorithms? d. Which of the algorithms results in the minimum average waiting time (over all processes)?
5.17 Consider the following set of processes, with the length of the CPU burst given in milliseconds: Process P₁ P₂ P3 P4 P5 Burst Time 5 3 1 7 4 Priority 4 1 2 2 3 The processes are assumed to have arrived in the order P₁, P2, P3, P4, P5, all at time 0. a. Draw four Gantt charts that illustrate the execution of these pro- cesses using the following scheduling algorithms: FCFS, SJF, non- preemptive priority (a larger priority number implies a higher priority), and RR (quantum = 2). b. What is the turnaround time of each process for each of the scheduling algorithms in part a? c. What is the waiting time of each process for each of these schedul- ing algorithms? d. Which of the algorithms results in the minimum average waiting time (over all processes)?