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Calculate the average turnaround time for preemptive SJF (SRTF) scheduling with the given processes: P1 (AT=0, BT=4), P2 (AT=1, BT=3), P3 (AT=2, BT=1).

Computer Science

ScanSolve AI Answer

Here's a breakdown of the process management and scheduling problems.

1. (a) Preemptive SJF (SRTF) Average Turnaround Time

  • Processes:

    • P1: Arrival Time (AT) = 0 ms, Burst Time (BT) = 4 ms
    • P2: AT = 1 ms, BT = 3 ms
    • P3: AT = 2 ms, BT = 1 ms
  • Gantt Chart (SRTF):

    • Time 0: P1 arrives (BT=4). P1 starts executing.
    • Time 1: P1 remaining BT = 3 ms. P2 arrives (BT=3
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