Consider a computer system to which two types of computer jobs are submitted. The mean time to run each type of job Ă‚Â The interarrival times for each type of job are exponential, with an average Ă‚Â jobs arriving each hour. Consider the following three situations.
a Type 1 jobs have priority over type 2 jobs, and preemption is allowed.
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b Type 1 jobs have priority over type 2 jobs, and no preemption is allowed.
c All jobs are serviced on a FCFS basis. Under which system are type 1 jobs best off? Worst off? Answer the same questions for type 2 jobs.