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JOB1 JOB2 JOB3 Type of job Heavy compute Heavy I/O Heavy I/O Duration 5 min. 15 min. 10 min. Memory required 50M 100M 80 M
JOB1 JOB2 JOB3 Type of job Heavy compute Heavy I/O Heavy I/O Duration 5 min. 15 min. 10 min. Memory required 50M 100M 80 M Need disk? No No Yes Need terminal No Yes No Need printer? No No Yes In the single batch system, three jobs are completed in the order of job1, job2 and job 3. In multiprogramming, there is little resource contention between the jobs, so all three can run in nearly minimum time while coexisting with the others in the computer. Calculate the total elapsed time, throughput rate (jobs/hour) and mean response time in both single batch system and multiprogrammed batch system. JOB1 JOB2 JOB3 Type of job Heavy compute Heavy I/O Heavy I/O Duration 5 min. 15 min. 10 min. Memory required 50M 100M 80 M Need disk? No No Yes Need terminal No Yes No Need printer? No No Yes In the single batch system, three jobs are completed in the order of job1, job2 and job 3. In multiprogramming, there is little resource contention between the jobs, so all three can run in nearly minimum time while coexisting with the others in the computer. Calculate the total elapsed time, throughput rate (jobs/hour) and mean response time in both single batch system and multiprogrammed batch system
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