嵌入式系统源程序级软件能耗建模与分析  

Modeling and analysis of energy consumption of software from source program level on embedded systems

作　　者：叶珊[1] 郭荣佐[1] 黄君[2] 

机构地区：[1]四川师范大学计算机科学学院,成都610101 [2]四川工商职业技术学院基础教学部,四川都江堰611830

出　　处：《计算机应用研究》2017年第10期3042-3044,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(61373162;61373163);国家科技支撑计划资助项目(2012BAH76F01);四川省教育厅自然科学基金一般项目(15ZB0045)

摘　　要：针对嵌入式系统能耗对各种嵌入式设备工作时长的影响,从系统指令级到源程序级的软件能耗考虑,首先通过分析设备源程序级语句的相关特征,基于源程序语句的指令能耗,提出一种针对源程序级的能耗模型;然后基于模型分析对五种经典算法的源程序中不同类别语句进行能耗优化;最后分别对五组经典算法优化前后的能耗进行比较。实验表明,该模型使得优化后的源程序能耗降低了9.46%~50.29%,达到了降低嵌入式系统软件能耗的目的。According to the influence of energy consumption of embedded systems to operation time of various embedded systems, this paper took the energy consumption of software from system instruction level to source program level as a consideration. First,it proposed a consumption model for the source program level of energy, by analyzing the related features and instruction consumptions of source statement. Then, it optimized different categories of statements energy consumption of five classical algorithms based on model analysis. Finally, it compared the energy consumption of five groups of classical algorithm before and after optimization. Experiments show that this model reduces energy consumption of the optimized source program by 9.46% - 50.29% , and achieves the purpose of reducing the energy consumption of embedded system software.

关 键 词：嵌入式系统 指令级 源程序级 软件能耗建模 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论]