What is priority scheduling in C programming?

The capacity to effectively manage system resources becomes essential as computer programs get more complicated. CPU time, which is limited and needs to be distributed among the various processes operating on a system, is one of the most significant resources that must be managed. Operating systems frequently employ the priority scheduling technique for CPU scheduling. Priority scheduling will be thoroughly discussed in this blog article, along with a sample C program.

Processes are given priority as part of the priority scheduling CPU scheduling mechanism, and the process with the highest priority is chosen to be executed. Priority scheduling involves selecting the process from the ready queue with the highest priority number and allocating the CPU to that process. Typically, a process’s relevance, the amount of CPU time it requires, or its deadline will decide its priority.

Preemptive and non-preemptive priority scheduling are the two categories that may be distinguished. In non-preemptive priority scheduling, once a process is given the CPU, it will continue to run until it completes or is stopped. The presently running process may be interrupted by a higher priority process in preemptive priority scheduling.

Conclusion:

The OS frequently uses the **priority scheduling** technique for CPU scheduling. Different processes are given priorities, and the highest-priority process is selected to be executed. In this blog article, we offered a sample priority scheduling program in C that organizes the processes according to their priority and determines the waiting time and turnaround time for each process.