Assume that we are using STCF scheduling and we have the following schedule of arriving transactions and durations Job Arrival Name Time A B C 1 0 0 Duration 10 13 100 Please complete the following measures (round each answer to the closest integer, if necessary) What is the average turnaround time (show your work)? What is the average response time (show your work)?
So I need help with scheduling
To calculate the average turnaround time, we need to know the time from when each job arrives until it completes. For a job, the turnaround time is the sum of the waiting time (the time the job spends waiting in the queue) and the execution time (the time the job spends executing on the CPU).
For STCF scheduling, the job with the shortest remaining time is always scheduled next. In case of a tie, the job that arrived earlier is scheduled first.
Here is the timeline for the given schedule, showing the start and end times for each job:
Job Name | Arrival Time | Duration | Start Time | End Time | Turnaround Time |
---|---|---|---|---|---|
C | 0 | 100 | 0 | 100 | 100 |
A | 1 | 10 | 100 | 110 | 109 |
B | 10 | 13 | 110 | 123 | 113 |
To calculate the average turnaround time, we sum the turnaround times of all jobs and divide by the total number of jobs:
Average turnaround time = (100 + 109 + 113) / 3 = 107
Therefore, the average turnaround time is 107.
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