![]() ![]() # In this algorithm there is no chance to occur convoy effect (no starvation). Response Time (RT) = FR (First Response) – AR (Arrival Time) The remaining time for process P1 (7 milliseconds) is larger than the time required by process P2 (4 milliseconds), so process P1 is preempted, and process P2 is scheduled. Process P1 is started at time 0, since it is the only process in the queue. This feature helps to improve the turnaround times and weighted turnarounds of processes.Īfter every one unit of processing current process, scheduler can check any processes available at ready queue with shorter burst time.Ĭriteria: BT (Burst Time) + AT (Arrival Time) ![]() Accordingly, the scheduler may preempt the current process when a new process (with a shorter burst time) becomes ready. When a new process joins the ready queue it may in fact have a shorter remaining time than the currently running process. In this algorithm, the scheduler always chooses the processes that have the shortest expected remaining processing time. The shortest remaining time First (SRTF) algorithm is preemptive version of SJF. Shortest Remaining Time First (SRTF) (Preemptive SJF)
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