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Determining the time quantum for a job is a critical task.
Given the assumptions that the average switching time between processes is s, and the average amount of time an I/O bound process uses before generating an I/O request is t (t >> s). Discuss the effect of each of the following quantum settings denoted by q.
a) q = infinity b) q is slightly greater than zero c) q = s d) s < q < t e) q = t f) q > t
mention the three problems that mat be caused by wrong initialization and placement of wait() and signal()operations in the use of semaphore
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Q. Consider the following page-replacement algorithms. Rank the algorithms on a five-point scale from "bad" to "perfect" according to their page-fault rate. Detach those algorithm
What is operating system?
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How do we keep track of where the free pieces of memory are? One idea is to maintain a set of linked-lists of free space; each linked-list will store free chunks of some given size
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