題組內容

3.(10 pts) The following table shows the time attributes of five processes in a uni-processor computer, including PID, priority, arrival time, CPU burst, and IO burst. Assuming that the lO burst occurs on different devices and always starts after first time unit. The less the priority value, the higher its priority. Please answer the following sub-questions.
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(b) (2 pts) When non-preemptive priority scheduling algorithm is used, what's the completion time of PID 5 process?