What are the key milestones in the evolution of scheduling algorithms?

What are the key milestones in the evolution of scheduling algorithms?

The evolution of scheduling algorithms includes several key milestones, such as the introduction of First-Come, First-Served (FCFS) in the 1950s, followed by Shortest Job Next (SJN) in the 1960s, and the development of Round Robin scheduling in the 1970s.

How did Round Robin scheduling improve upon previous algorithms?

Round Robin scheduling improved upon previous algorithms by ensuring that all processes receive an equal share of CPU time, which helps prevent starvation and improves responsiveness for time-sharing systems.

What are some modern scheduling algorithms used today?

Modern scheduling algorithms include Multi-Level Queue Scheduling, Completely Fair Scheduler (CFS), and Real-Time Scheduling algorithms, which are designed to handle the complexities of contemporary computing environments.

Can you explain the concept of priority scheduling?

Priority scheduling is a method where each process is assigned a priority, and the CPU is allocated to the process with the highest priority. This can lead to starvation if lower-priority processes are perpetually preempted.

What challenges do current scheduling algorithms face?

Current scheduling algorithms face challenges such as handling real-time constraints, managing resource contention, and optimizing for energy efficiency in mobile and embedded systems.