多资源闭环反馈调度系统的构建与分析

Analysis and Construction of a Close-Loop Feedback Scheduling System with Multi-Resources

该文针对工作在不可预测环境下并且被调度任务集有着多个资源需求的计算机实时调度系统进行建模与分析,将多回路闭环反馈控制应用于计算机调度系统,利用反馈控制的强健性特征构建整个适应型多资源反馈调度机制。闭环系统可以根据运行时任务集执行情况及资源利用状况,通过调整调度任务的执行周期以及带宽服务层,达到改善任务集执行性能和优化利用系统的CPU资源与带宽资源的目的。

An adaptive multi-loop feedback control scheduling system is constructed to provide quality of service guarantees in open and unpredictable environments.By applying the robust characteristic of feedback control theory,a close-loop controller is designed based on a difference equation model that describes the dynamic behavior of real-time system.The feedback control scheduling system can automatically improve its performance and optimize its resource utilization through monitoring the utilization of multi-resource and regulating the period and bandwidth service level of the scheduled task set.