摘要
针对TinyOS系统FCFS任务调度机制对吞吐量和短任务实时响应的不足,提出了基于非抢占任务的实时周期监测调度策略。把任务抽象为周期和非周期2种存在形式,在2个任务队列中实现并行协调调度,使短任务单独组队、长任务进行优化调度处理。实验结果表明,在不影响原系统性能的前提下,此方法提高了系统吞吐量,改善了短任务响应性能。
Aiming at the defect of throughput and short real-time response in the TinyOS system by using FCFS task schedu-ling mechanism,a scheduling strategy is proposed based on the non-preemption task cycle monitoring.The system tasks are abstracted two kinds of forms,and the parallel coordinate scheduling is realized in two tasks queues.Short task is scheduled separately,and long task is optimized by the scheduling process.The experimental results show that this method can im-prove the throughput and short task response performance without affecting the original system performance.
出处
《桂林电子科技大学学报》
2014年第1期37-41,共5页
Journal of Guilin University of Electronic Technology
基金
国家自然科学基金(61262074
61162008
61163059)
广西可信软件重点实验室开放基金(kx201101)
广西高校优秀人才资助计划(桂教人201065)
广西自然科学基金(2012GXNSFCA053009)
关键词
无线传感器网络
调度策略
协同调度
TinyOS
wireless sensor network
TinyOS
scheduling strategy
co-scheduling
