2023 1 On a single processor system explain the benefit the better performance of | Assignment Collections
Computer Science 2023 OPERATING SYSTEM
2023 1 On a single processor system explain the benefit the better performance of | Assignment Collections
1. On a single-processor system, explain the benefit the better performance of multi-threaded kernel threads over single threaded kernel threads
2. But not parallelism, it is achievable to have concurrency in operating system threading?
3. The following processes are being scheduled using a priority (a smaller priority number implies a higher priority) and shortest job first all preemptive scheduling algorithms.
Process Priority Burst Arrival
P1 50 30 0
P2 40 35 25
P3 40 35 30
P4 45 25 60
P5 15 20 100
P6 20 20 105
i. Draw the Gantt charts that illustrate the execution of these processes using the above scheduling algorithms.
ii. What is the turnaround time of each process for each of the scheduling algorithms in part a?
iii. What is the waiting time of each process for each of these scheduling algorithms?
Which of the algorithms results in the minimum average waiting time (over all processes)?
1. Consider a logical address of 128 pages of 1024 words each, mapped onto a physical memory of 64 frames.
i. How many bits are there in the logical address?
ii. How many bits are there in the physical address?
iii. What is the size of the page table?
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