Exponential averaging can predict total CPU time for which type of scheduling? First-in-first-out Long-term Short-term Any scheduling algorithm
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A CPU-scheduling algorithm determines an order for the execution of its scheduled processes. Given $n$ processes to be scheduled on one Practice Exercises $\quad \mathbf{2 1 1}$ processor, how many different schedules are possible? Give a formula in terms of $n$.
In a long series of trials, a computer program is found to take on average 58 seconds of CPU time to execute, and the SD is 2 seconds. There is no trend or pattern in the data. It will take about seconds of CPU time to execute the program 100 times, give or take seconds or so. (The CPU is the "central processing unit," where the machine does logic and arithmetic.)
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