在资源受限的情况下,嵌入式软件在运行时其性能指标能否满足要求至关重要,在确定的目标前提下,对于已给定的参数配置,嵌入式系统的设计也是至关重要的。针对嵌入式系统内中断服务的随机性、实时性和并发性等特点,该文提出基于排队理论的嵌入式系统中断服务可靠性评估方法,并构建多级中断服务抢占优先权的排队模型,得出中断服务系统的性能评估指标。仿真实验结果表明:基于排队的中断服务方法符合嵌入式系统的动态可靠性评估,同时具有一定的普适性。 In the case of limited resources, embedded software at run-time performance indicators to meet the requirements is crucial, given the target premise, for a given parameter configuration, the design of embedded systems is also crucial . In view of the randomness, real-time and concurrency of interrupt service in embedded system, this paper proposes a method to evaluate the reliability of interrupt service in embedded system based on queuing theory and constructs a queuing model of multi-level interrupt service preemption priority. Out of service system performance evaluation index. The simulation results show that the queuing-based interrupt service method is in line with the dynamic reliability assessment of embedded systems and has some universality.