# Sfds

Submitted By mdazharali20
Words 286
Pages 2
ASSIGNMENT - 3

4. For what types of workloads does SJF deliver the same turnaround times as FIFO?
ANSWER: - In the above case if the jobs are same in size or the jobs periodically applied (i.e. first shortest job then later second shortest job and continues) then the turnaround time of SJF is same as FIFO.
5. For what types of workloads and quantum lengths does SJF deliver the same response times as RR?
ANSWER: - The response time delivered by SJF is equal to the response time of RR but this happens only when all the jobs arrived are at the point when the planning quantum of RR is bigger than the bigger occupation to be administrations in order of increasing size.

6. What happens to response time with SJF as job lengths increase? Can you use the simulator to demonstrate the trend?
ANSWER: - If you suppose the length of the job increases then average response time varies (increases).If every job is sorted in increasing job order than the last job response time will be equal to the sum of current job and previous (n-1) jobs. In this way if the size of the job increases the response time will also increases for all larger jobs.

7. What happens to response time with RR as quantum lengths increase? Can you write an equation that gives the worst-case response time, given N jobs?
ANSWER: - In the case of RR, the response time increases as the quantum lengths increases. This happens because the waiting time of a process for its turn to execute is directly proportional to maximum amount time they execute and the total number of other...

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