Question

1. Consider the following set of processes, with the length of the CPU burst given in milliseconds

      Process            Burst Time      Priority

      P1                    2                      2

      P2                    1                      1

      P3                    8                      4

      P4                    4                      2

      P5                    5                      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 processes using the   following scheduling algorithms: FCFS, SJF, nonpreemptive 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 these scheduling algorithms? Give a table to list all results.

c. what is the waiting time of each process for each of the scheduling algorithms? Give a table to list all results.

d. which of the algorithms results in the minimum average waiting time (over all processes)

Answer 1