Static Priority Scheduling
Static Priority Scheduling is a real-time operating system (RTOS) scheduling algorithm where tasks are assigned fixed priority levels at design time, which do not change during runtime. It determines the order of task execution based on these pre-defined priorities, with higher-priority tasks always preempting lower-priority ones. This approach is commonly used in embedded systems and critical applications where predictable timing behavior is essential.
Developers should learn and use Static Priority Scheduling when building systems with hard real-time requirements, such as automotive control, avionics, or medical devices, where missing deadlines can lead to catastrophic failures. It provides deterministic behavior and simplifies analysis, making it suitable for safety-critical applications where task execution order must be guaranteed and verified offline through techniques like Rate Monotonic Analysis (RMA).