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meababy2009ow9ewa
meababy2009ow9ewa
11.02.2020 • 
Computers and Technology

3.2. Assume at time 5, no system resources are being used except for the processor and memory. Now consider the following events: At time 5: P1 executes a command to read from disk unit 3. At time 15: P5’s time slice expires. At time 18: P7 executes a command to write to disk unit 3. At time 20: P3 executes a command to read from disk unit 2. At time 24: P5 executes a command to write to disk unit 3. At time 28: P5 is swapped out. At time 33: An interrupt occurs from disk unit 2: P3’s read is complete. At time 36: An interrupt occurs from disk unit 3: P1’s read is complete. At time 38: P8 terminates. At time 40: An interrupt occurs from disk unit 3: P5’s write is complete. At time 44: P5 is swapped back in. At time 48: An interrupt occurs from disk unit 3: P7’s write is complete. For each time 22, 37, and 47, identify which state each process is in. If a process is blocked, further identify the event on which it is blocked.

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