Problem
In a system serving both batch jobs and terminal users, the following observations were made during a 30 minute interval:
active terminals 40
think time 20 seconds
interactive response time 5 seconds
disk service time per access 20 milliseconds
disk accessesper batch job 100
disk accessesper terminal interaction 5
disk utilization 60%
1. What is batch throughput?
2. Using only the information given above, calculate the maximum batch throughput possible if interactive response times of 15 seconds are to be achievable. What assumption must you make in answering this question?