GATE | GATE IT 2006 | Question 54

The arrival time, priority, and duration of the CPU and I/O bursts for each of three processes P1, P2 and P3 are given in the table below. Each process has a CPU burst followed by an I/O burst followed by another CPU burst. Assume that each process has its own I/O resource.
2006_54
The multi-programmed operating system uses preemptive priority scheduling. What are the finish times of the processes P1, P2 and P3 ?
(A) 11, 15, 9
(B) 10, 15, 9
(C) 11, 16, 10
(D) 12, 17, 11


Answer: (B)

Explanation:

So finishing time of p1 p2 p3 are 10 15 9

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