24.PRIORITY PREEMPTIVE (PR) SCHEDULING ALGORITHM WITH EXAMPLE

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In this video, we explore the Priority Preemptive Scheduling Algorithm, one of the most crucial CPU scheduling techniques. This algorithm assigns priorities to processes and preempts the currently running process if a higher-priority process arrives. We walk you through a detailed example, breaking down each step of the process to clarify how the system manages multiple processes based on their assigned priorities. This explanation is ideal for those learning operating systems or preparing for technical interviews.

Timestamps:
00:06 – Detailed Example of the Priority Preemptive Algorithm: At this point, we dive deep into an example of the Priority Preemptive Scheduling Algorithm. We begin by explaining how priorities are assigned to different processes and how the CPU decides which process to execute based on its priority level. As a new process with a higher priority arrives, it preempts the currently running process. The explanation includes step-by-step tracking of processes, changes in the queue, how preemptions occur, and how the remaining execution time is managed for interrupted processes. We also cover how the algorithm computes key metrics like turnaround time and waiting time, providing an in-depth understanding of process prioritization and scheduling efficiency.

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