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9.16. Five 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 cor- responding to a higher priority. For each of the following scheduling algorithms, deter- mine the turnaround time for each process and the average turnaround for all jobs. Ignore process switching overhead. Explain how you arrived at your answers. In the last three cases, assume only one job at a time runs until it finishes, and all jobs are completely processor bound. a. round robin with a time quantum of 1 minute b. priority scheduling c. FCFS (run in order 15, 9, 3, 6, and 12) d. shortest job first

9.16. Five 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 cor- responding to a higher priority. For each of the following scheduling algorithms, deter- mine the turnaround time for each process and the average turnaround for all jobs. Ignore process switching overhead. Explain how you arrived at your answers. In the last three cases, assume only one job at a time runs until it finishes, and all jobs are completely processor bound. a. round robin with a time quantum of 1 minute b. priority scheduling c. FCFS (run in order 15, 9, 3, 6, and 12) d. shortest job first

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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9.16. Five 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 cor- responding to a higher priority. For each of the following scheduling algorithms, deter- mine the turnaround time for each process and the average turnaround for all jobs. Ignore process switching overhead. Explain how you arrived at your answers. In the last three cases, assume only one job at a time runs until it finishes, and all jobs are completely processor bound. a. round robin with a time quantum of 1 minute b. priority scheduling c. FCFS (run in order 15, 9, 3, 6, and 12) d. shortest job first
Transcribed Image Text:9.16. Five 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 cor- responding to a higher priority. For each of the following scheduling algorithms, deter- mine the turnaround time for each process and the average turnaround for all jobs. Ignore process switching overhead. Explain how you arrived at your answers. In the last three cases, assume only one job at a time runs until it finishes, and all jobs are completely processor bound. a. round robin with a time quantum of 1 minute b. priority scheduling c. FCFS (run in order 15, 9, 3, 6, and 12) d. shortest job first
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