Declare waiting time and. Function call to find waiting time array. Function call to find turnaround time. Using inbuilt sort function. Calling function findgc for.
Recommended Articles. Article Contributed By :. Easy Normal Medium Hard Expert. Writing code in comment? Please use ide. Computer Organization. Discrete Mathematics. Ethical Hacking. Computer Graphics. Software Engineering. Web Technology. Cyber Security. C Programming. Control System. Data Mining. In Preemptive Scheduling, the tasks are mostly assigned with their priorities.
Sometimes it is important to run a task with a higher priority before another lower priority task, even if the lower priority task is still running.
The lower priority task holds for some time and resumes when the higher priority task finishes its execution. In this type of scheduling method, the CPU has been allocated to a specific process. It is the only method that can be used for various hardware platforms. Consider following five processes P1 to P5. Each process has its unique priority, burst time, and arrival time.
P1 has higher priority than P2. The execution begins with process P1, which has burst time 4. Step 2 At time 2, no new process arrives, so you can continue with P1. P2 is in the waiting queue. Like Article. Priority scheduling is one of the most common scheduling algorithms in batch systems. Each process is assigned a priority. Process with the highest priority is to be executed first and so on.
Processes with the same priority are executed on first come first served basis. Priority can be decided based on memory requirements, time requirements or any other resource requirement.
Implementation : 1- First input the processes with their burst time and priority. Note: A major problem with priority scheduling is indefinite blocking or starvation. A solution to the problem of indefinite blockage of the low-priority process is aging. Aging is a technique of gradually increasing the priority of processes that wait in the system for a long period of time.
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