However, the heavy system overheads resulting from the highly frequent occurrences of preemption under heavy workload are characterized by the fixed priority scheduling of the RM algorithm.

• 然而这类算法的固定优先级特征使其在高任务负载环境下具有极高的抢占次数，从而导致了较大的系统开销，因此提出一种方法来减少RM调度的抢占次数。