Completely Fair Scheduler (CFS)

The Completely Fair Scheduler (CFS) is a system used by Linux to manage how multiple programs share the computer's processing power. It ensures each program gets a fair amount of CPU time based on their needs, preventing any single program from dominating. CFS tracks how much time each program has used and dynamically adjusts priorities so that all programs progress smoothly and efficiently. By doing this, CFS helps keep the system responsive, ensuring tasks run fairly and efficiently without unnecessary delays or lags.