郝嘉磊, 王东辉, 张铁军, 王雷欧. 基于抢占阈值调度的动态电压分配算法[J]. 微电子学与计算机, 2016, 33(7): 54-59.
引用本文: 郝嘉磊, 王东辉, 张铁军, 王雷欧. 基于抢占阈值调度的动态电压分配算法[J]. 微电子学与计算机, 2016, 33(7): 54-59.
HAO Jia-lei, WANG Dong-hui, ZHANG Tie-jun, WANG Lei-ou. Dynamic Voltage Allocation Algorithm with Preemption Threshold Scheduling[J]. Microelectronics & Computer, 2016, 33(7): 54-59.
Citation: HAO Jia-lei, WANG Dong-hui, ZHANG Tie-jun, WANG Lei-ou. Dynamic Voltage Allocation Algorithm with Preemption Threshold Scheduling[J]. Microelectronics & Computer, 2016, 33(7): 54-59.

基于抢占阈值调度的动态电压分配算法

Dynamic Voltage Allocation Algorithm with Preemption Threshold Scheduling

  • 摘要: 为了将实时操作系统应用于功耗敏感的嵌入式场景中, 提出一种基于抢占阈值调度的动态电压分配算法.仅使用动态电压调节会导致更多无用的任务抢占, 任务集可调度性下降.针对上述的问题, 将抢占阈值调度方法与动态电压调节结合, 在保证任务集可调度的前提下进一步降低处理器供电电压和运行频率.通过仿真, 验证了该算法在降低系统功耗方面的优势.

     

    Abstract: In order to implement real-time opration system on power sensitive embedded systems, a dynamic voltage allocation algorithm with preemption threshold is proposed. The implementation of dynamic voltage scaling(DVS) will cause more useless scheduling and make the task set hard to be scheduled. To solve the problems mentioned above, DVS can be used with preemption threshold scheduling(PTS). The voltage and frequency of processor can be further reduced with shedulable task set. The simulation results verified the advantage in reducing system power of the proposed algorithm.

     

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