Meanwhile, the current state of the process is saved by context switch and another job can be processed in the meantime. This is a preemptive algorithm which means that the CPU can leave a process while under execution, and can move to the next process in the queue.
In such cases, the jobs are based on first come first serve basis or in other words, FIFO approach is used. However, there may be scenarios where one or more processes have same execution time. The remaining processes are also executed in the order of their burst times. What is Preemptive Shortest Job Scheduling Algorithm?Īccording to the SJF algorithm, the jobs in the queue are compared with each other and the one with shortest burst time gets executed first. Let us learn how to implement the preemptive shortest job first scheduling algorithm in C programming with its explanation, output, advantages, disadvantages and much more. There are many scheduling algorithms in C for process management such as: 1. In this tutorial you will learn about round robin scheduling program in C.
