SJN
SJN is an acronym most commonly used in computer science to denote the Shortest Job Next scheduling algorithm. In its standard form, SJN is a non-preemptive CPU scheduling policy that selects the waiting process with the smallest estimated CPU burst time to execute next. When all processes are available at the same time, SJN can reduce average waiting time and turnaround time compared with longer jobs, making it a useful theoretical model for analyzing scheduling behavior.
SJN is often described as a variant of the Shortest Job First (SJF) policy, with emphasis on
Implementation considerations include the need for accurate burst-time estimation and the trade-off between optimal waiting times
In other domains, the acronym SJN may refer to different concepts or organizations; this article focuses on