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Scheduling algorithms are essential for managing how processes are assigned to the CPU for execution. They ensure efficient CPU utilization, minimize waiting time, and improve overall system performance. These algorithms can be broadly categorized into preemptive (where a running process can be interrupted) and non-preemptive (where a process runs to completion once started).
Key Scheduling Algorithms
First Come First Serve (FCFS)
This is the simplest scheduling algorithm where processes are executed in the order they arrive. It is non-preemptive and uses a FIFO queue. While easy to implement, it often results in high average waiting times due to the convoy effect.
Shortest Job First (SJF)
SJF selects the process with the shortest CPU burst time. It can be preemptive or non-preemptive. This algorithm minimizes average waiting time but can lead to starvation for longer processes.
Shortest Remaining Time First (SRTF)
CPU Scheduling in Operating Systems
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Operating System Scheduling algorithms - Online Tutorials Library
- Priority scheduling is a non-preemptive algorithm and one of the most common scheduling algorithms in batch systems.
- Each process is assigned a priority. Process with highest priority is to be executed first and so on.
- Processes with same priority are executed on first come first served basis.
- Priority scheduling is a non-preemptive algorithm and one of the most common scheduling algorithms in batch systems.
- Each process is assigned a priority. Process with highest priority is to be executed first and so on.
- Processes with 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.
Operating System Scheduling Algorithms - Aleksandr Hovhannisyan
Aug 13, 2019 · How do processes take turns running on a CPU? Learn about the different kinds of scheduling algorithms and how they work.
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7.1: Scheduling algorithms :: Operating Systems …
A simple algorithm that a scheduler can follow is: First Come, First served (FCFS). The order in which the jobs arrive (are started) is the same as the …
Scheduling Algorithms of Operating System
Learn about different CPU scheduling algorithms used in operating systems, such as FCFS, SJF, priority, round-robin, and multilevel queue. See …
