A Closed-Loop Feedback Scheduling Algorithm Based on Embedded Real-Time Operating System
Sun Ping · Computer Technology and Development · 2007
Analyses common characteristics of scheduling algorithms,and presents an embedded real-time operating system which is based on a closed-loop feedback control scheduling strategy.In view of the characteristics of task,periodic and aperiodic,I/O-bound and processor-bound tasks,the two aspects of tasks carries on corresponding feedback control,which makes the process scheduler has certain procedures for scheduling of adaptive function.And compared with EDF,the modified scheduling algorithm of μC/OS-II performs good under the situations when the system is in heavy load or overload.