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提出了一种实时异构系统的集成动态调度算法.该算法通过一个新的任务分配策略以及软实时任务的服务质量QoS(quality of service)降级策略,不仅以统一方式完成了对实时异构系统中硬、软实时任务的集成动态调度,而且提高了算法的调度成功率.同时,还进行了大量的模拟研究.这些模拟以传统的近视算法为基准,将其应用在实时异构系统集成动态调度时的调度成功率与新算法进行比较,模拟结果表明,在多种任务参数取值下,新算法的调度成功率均高于传统的近视算法.
A new dynamic scheduling algorithm for real-time heterogeneous systems is proposed.This algorithm, through a new strategy of task assignment and quality of service (QoS) degradation of soft real-time tasks, not only realizes real-time heterogeneous system Hard and soft real-time tasks, but also improve the scheduling success rate of the algorithm.At the same time, a large number of simulation studies have also been carried out.These simulations are based on the traditional myopia algorithm and are applied in real-time heterogeneous system integration dynamic The scheduling success rate in scheduling is compared with the new algorithm. The simulation results show that the scheduling success rate of the new algorithm is higher than the traditional myopia algorithm under the various task parameters.