Fixed Priority Scheduling with Deferred Preemption (FPDS) offers a balance between Fixed Priority Non-preemptive Scheduling (FPNS) and Fixed Priority Preemptive Scheduling (FPPS), by allowing preemptions only at specified preemption points. It provides finer grained preemptions than FPNS, improving the schedulability of higher priority tasks, and a coarser grain preemptions than FPPS, reducing ...