Preemptive Priority Scheduling Algorithm C Program

By | September 7, 2016

C Program To Implement Preemptive Priority Scheduling Algorithm

Learn How To Implement Preemptive Priority Scheduling Algorithm in C Programming Language. The Pre – emptive Priority Scheduling Algorithm is a Disk Scheduling Algorithm used in Operating System process management. The Priority CPU Scheduling Algorithm is normally represented using Gantt’s Chart on paper.

This Priority Scheduling Algorithm uses Arrival Time and consists of Structures instead of Arrays. The Algorithm is a Preemptive Algorithm. It is much more efficient than the Non Preemptive Algorithm as it helps to efficiently manage the Turnaround time and waiting time as well.

What is Preemptive Priority Scheduling Algorithm?

The Priority Scheduling Algorithm using Structure primarily works on the priorities assigned to different processes in the Ready Queue. Every process is assigned a particular priority and the process with the highest priority will get executed above all the other processes in the ready queue.

Since this is a Preemptive Scheduling Algorithm, the CPU can leave the process midway. That means, the CPU can be taken away from a process in execution and start execution of any other process either in the Ready Queue or the Waiting Queue. The state of the previous incomplete process is saved and the CPU can resume from the saved state for that process.

C Program For Preemptive Priority Scheduling Algorithm with Arrival Time


Preemptive Priority Scheduling Algorithm in C Programming using Structures, Arrival Time

If you have any doubts or compilation errors in this C Program to Implement Priority Scheduling Algorithm using Preemptive technique, Arrival time and Structures, let us know about in the Comment Section below. Check Careerride for more information on Preemptive Scheduling Algorithms.

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5 thoughts on “Preemptive Priority Scheduling Algorithm C Program

  1. Sanjay Shukla

    Can we use Arrays to write a code for Preemptive Priority Scheduling Algorithm?

  2. Raju Saigal

    Is this a preemptive priority algorithm or a non preemptive priority algorithm?

  3. Mridul Sharma

    The code is definitely not preemptive priority scheduling.This is because as soon as the B process with 1 priority came,the execution of process A will stop and process A has to wait for a time of 54 for B to complete.
    Your waiting time for A is 0 that is WRONG.

  4. Vineeth Daniel

    The Priority Scheduling algorithm is a apecial case of the Shortest Job First CPU scheduling algorithm.

  5. duresa

    that is nice !! but i want to implement multilevel priority packet scheduling in ns2 . but i didn’t get any hint to do it . is there any one who can send me the source code ??


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