Course Solutions Uncategorized (Solved) : 28 Make Table Showing Processes P1 P2 P3 Running Blocked Function Time 0 1000 Msec Three P Q30121347 . . . .

(Solved) : 28 Make Table Showing Processes P1 P2 P3 Running Blocked Function Time 0 1000 Msec Three P Q30121347 . . . .

 

28. Make a table showing which of the processes P1, P2, and P3 are running and which are blocked as a function of time from 0 to 1000 msec. All three processes perform up and down instructions on the same semaphore. When two processes are blocked and an up is done, the process with the lower number is restarted, that is, Pl gets preference over P2 and P3, and so on. Initially, all three are running and the semaphore is l At 1 100 PI does a down At t = 200 Pl does a down At t= 300 P2 does an up At 1 400 P3 does a down At t = 500 Pl does a down At 600 P2 does an up At 700 P2 does a down At t = 800 PI does an up At 900 Pl does an up

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