A fault-tolerant real-time scheduling algorithm supporting tasks of multilevel criticality
Li Zhong · Journal of Sichuan University · 2008
Based on the current research area of the real-time system of supporting tasks of multilevel criticality not including fault-tolerance technology,a fault-tolerant real-time system model supporting tasks of multilevel criticality is proposed.With the worst-case response time schedulability analysis when an fault happen,a new algorithm that decide whether to startup the alternative task and how to assign the fault-tolerant priority is proposed too.Not only does this algorithm enable the system to recover errors,it also keep the system's throughout as much as possible.The effectiveness of the approach is evaluated by an instance.