실시간 제어시스템의 확률적 응답시간 해석

In real-time control systems, the traditional timing analysis based on worst-case response-time (WCRT) is too conservative for the firm and soft real-time control systems. which permit the maximum utilization factor greater than one. We suggested a stochastic analysis method possible to apply the firm and soft real-time control systems under considering dependency relationship between tasks. The proposed technique determines the deadline miss probability (DMP) of each task from computing the average response-time distribution under a fixed-priority scheduling policy. The method improves the predictable ability for the average performance and the temporal behavior of real-time control systems.