The arrival time, priority, and duration of the CPU and I/O bursts for each of…

GATE · 2006 · IT

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.

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The multi-programmed operating system uses preemptive priority scheduling. What are the finish times of the processes P1, P2 and P3 ?

  1. A.

    11, 15, 9

  2. B.

    10, 15, 9

  3. C.

    11, 16, 10

  4. D.

    12, 17, 11

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Correct answer: B

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