![]() ![]() Time required for completion (∆T)(CPU Burst Time) Consider all time values in milliseconds. Their arrival time and time required to complete the execution are given in following table. When CPU becomes free, a process from the first position in a queue is selected to run.Ĭonsider the following set of four processes. All processes in a queue are sorted in ascending order on their remaining run time. This strategy can also be implemented by using sorted FIFO queue. If the new job needs less time to finish than the current process, the current process is suspended and the new job is started. Preemptive: When a new process arrives, its total time is compared to the current process remaining run time. This is a preemptive version of SJF scheduling. The process, whose remaining run time is shortest, is served first. Question-1 Explain Shortest Remaining Time Next (SRTN) scheduling algorithms with illustration. (1) Explain Shortest Remaining Time Next (SRTN) scheduling algorithms with illustration.Lists of Long Descriptive type Questions that may be asked in Written Exams. Here in this section of Operating System Long Questions and Answers,We have listed out some of the important Long Questions with Answers on Shortest Remaining Time Next (SRTN) scheduling algorithms which will help students to answer it correctly in their University Written Exam. Process returned 0 ( 0x0 ) execution time : 31.475 s Process burst-time arrival-time waiting-time turnaround-time completion-timeĪverage waiting time = 3.8 Average Turnaround time = 7 ![]() Out of all the available processes, CPU is assigned to the process having the smallest burst time.ġ-In the case of a tie, it is broken by FCFS Scheduling.Ģ-The preemptive mode of Shortest Job First is called the Shortest Remaining Time First(SRTF).Īdvantages- 1-SRTF is optimal and guarantees the minimum average waiting time.Ģ-It provides a standard for other algorithms since no other algorithmĭisadvantages- 1-It cannot be implemented practically since the burst time of theĢ-It leads to starvation for processes with larger burst time.ģ-Priorities cannot be set for the processes.Ĥ-Processes with larger burst time have poor response time. ![]()
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