基于静态优先级的调度

Static Priority-Based Scheduling

应用实时系统,如航空电子系统,不仅要满足调度任务的强实时约束,而且要具有较强的系统功能,即需要较高的系统任务可调度利用率。本文首先给出实时任务调度算法的分类及基于优先级调度算法的性能分析;然后详细描述了静态优先级任务系统的调度算法,以及在诸如航空电子系统数据传输网络设计中调度方案的选择。

Real time systems, such as avionic system, have to not only satisfy the hard real-time constraint in task scheduling, but also have a higher capability in functioning that means a higher utilization in task scheduling. In this paper, first of all, the classification of the scheduling algorithms and the performance analysis of the priority based scheduling algorithms are described. Then a detailed description of the fixed-priority scheduling algorithm is given. Finally, a comparison and selection of these scheduling algorithms for avionic system design are made.