Earliest Deadline First (EDF) is a dynamic, priority-based preemptive scheduling algorithm for real-time systems where the task with the nearest absolute deadline is always assigned the highest priority for processor execution. Unlike static methods like Rate-Monotonic Scheduling (RMS), EDF dynamically recalculates priorities at every scheduling point based on impending deadlines, allowing it to theoretically achieve 100% processor utilization under ideal conditions for schedulable task sets. This makes it a powerful choice for complex systems with aperiodic or varying workloads.




