Consider a system consisting of four resources of the same type that a

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Module 4: Deadlocks

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Consider a system consisting of four resources of the same type that are shared by three processes, each of which needs at most two resources. Show that the system is deadlock-free.

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PreviousClearly justify why deadlocks cannot arise in a bounded buffer producers-consumers system.NextFive batch jobs, A through E, arrive at a computer center at essentially the same time. They have an estimated running time of 15, 9, 3, 6 and 12 minutes, respectively. Their (externally defined) priorities are 6, 3, 7, 9 and 4, respectively, with a lower value corresponding to a higher priority. For each of the following scheduling algorithms, determine the waiting time for each process and the average waiting for all jobs. Ignore process switching overhead. Explain how you arrived at your answers. In the last three cases, assume that only one job at a time runs until it finishes and that all jobs are completely processor bound: (a) Priority scheduling (b) FCFS (run in order 15, 9, 3, 6 and 12) (c) Shortest job first

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