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

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written 2.9 years ago by

shahed_ahmed • 20

modified 2.9 years ago by

binitamayekar ★ 6.6k

Draw Gantt chart that illustrate the execution of these processes using Round-Robin algorithm with time quantum of 5 milliseconds.

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operating systems

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written 2.9 years ago by

pedsangini276 • 4.8k

Gantt Chart

Waiting Period

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Average Waiting Period:- =(15+20+25+29)/4
= (89)/4
= 22.25

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written 2.9 years ago by

binitamayekar ★ 6.6k

Turn Around Time = Process Completion Time – Process Arrival Time

Waiting time = Turn Around time – Burst time

Round Robin

Process	Arrival Time	Burst Time	Completion Time	Turn Around Time	Waiting Time
P1	0	10	25	25 – 0 = 25	25 – 10 = 15
P2	1	9	29	29 – 1 = 28	28 – 9 = 19
P3	2	12	37	37 – 2 = 35	35 – 12 = 23
P4	3	6	35	35 – 3 = 32	32 – 6 = 26

Average Turn Around Time = (25 + 28 +35 + 32)/4 = 30 ms

Average Waiting time = (15 + 19 + 23 + 26)/4 = 20.75 ms

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