【摘要】 在容错实时系统中,可调度性分析是确保实时任务在限定时间内完成的重要手段。分析了突发性故障模式的可调度性问题,针对该故障模式下已有策略的不足,设计了优先级分配策略,并根据策略的性质实现了容错优先级变迁因子的搜索算法。深入的分析和实验证明,这种策略能够有效地提高系统的容错能力。更多还原

【Abstract】 In real-time systems,schedulers must be fault tolerant to guarantee no missed deadline.Based on the analysis of worst-case response time schedulability for real-time systems under fault bursts,we found out that fault-tolerant priority assignment strategy could improve system fault resilience effectively,compared with traditional fault-tolerant strategy.Also,we presented a fault-tolerant priority configuration search algorithm for the proposed analysis.更多还原