Numerical Solved by Round Robin Scheduling without using Switching
Q4. Take three processes that arrive at the same time in the following order and the time quantum is 2ms.
Process Burst Time
P1 10
P2 5
P3 2
Draw Gantt Chart and calculate average turnaround and waiting time using Round Robin Scheduling Algorithm without Switching.
Ans.
Grant Chart:
| P1 | P2 | P3 | P1 | P2 | P1 | P2 | P1 | P1 |
0 2 4 6 8 10 12 13 15 17
Turnaround Time
Turnaround Time = Burst Time + Waiting Time
P1=17
P2=13
P3=6
Average Turnaround Time
=(17+13+6)/3
=36/3
=12 ms