Job ID Service Time Arrival Time Start Time Finish Time Preemption Turnaround Time Waiting Time Context Switches
T1 23 0 0 23

23 0 0
T2 75
25
20 23
173
73
198

end of quantum; T3 starts

178 103 1
T3 93
43
22 73
198
123
241
end of quantum; T4 starts
219 126 1
T4 48 50 123 171   121 73 0
T5 2 55 171 173   118 116 0
Mean           131.8 83.6  
Table 6: Round-Robin policy of Example 2B.