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Assume you are given a uniprocessor system with one gigabyte of memory and a 300 gigabyte disk. The OS on the machine has a demand paged virtual memory system with a local page replacement policy and a multi-level feedback queue (MLFQ) CPU scheduler. On the system there are two compute-intensive jobs running: Job-A and Job-B. Job-A has a working set of 50 gigabytes while Job-B has a working set of 100 megabytes. Assume you left the system to run for a while until it reached a steady state with both jobs running.
a. Which job would you expect to have a higher CPU scheduling priority from the MLFQ scheduler?
b. Assume you add a second CPU to system, how would this affect the priorities of the jobs?
c. Assume you switch from a local to a global page replacement policy, how does this change affect the priorities of the jobs?
Justify your answer and state any assumptions you make.
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
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