摘要
在μC/OS-Ⅱ进行实时任务调度时,可以使用单一的调度算法分配任务优先级。优先级判定标准的片面性、"错过率"较高的截止期,影响了μC/OS-Ⅱ的实时调度性能。该文提出了多参数任务优先级分配策略和μC/OS-Ⅱ任务的调度方法,实验证明,该方法截止期的平均错过率为60.1%,有效地改善了μC/OS-Ⅱ的实时调度性能。
When the real-time tasks are scheduled, μC/OS-Ⅱ takes use of single algorithm to assign the priority of tasks. Because of the singuiarity of determinant standard of priorty, the high deadline missing ration of real-time tasks influences the real-time scheduling performance seriously. This paper advances the assigning policy of priority of multi-parameter tasks and the task scheduling method in μC/OS-Ⅱ. Experimental results show that DMR of multi-parameter scheduling algorithm is 60.1%, and improvement of real-time scheduling performance.
出处
《计算机工程》
CAS
CSCD
北大核心
2007年第21期28-30,共3页
Computer Engineering
