基于ARM处理器的嵌入式软件能耗统计模型  

ARM-Based Embedded Software Statistical Energy Model

作　　者：刘啸滨[1] 郭兵[1] 沈艳[2] 朱建[1] 王继禾[1] 伍元胜[1] 

机构地区：[1]四川大学计算机学院,成都610065 [2]成都信息工程学院控制工程学院,成都610225

出　　处：《电子科技大学学报》2012年第5期770-774,共5页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金(61272104;61073045);四川省杰出青年科技基金(2010JQ0011);中国科学院计算技术研究所计算机体系结构国家重点实验室开放课题(ICT-ARCH201003)

摘　　要：提出了一种嵌入式软件能耗的统计模型,包括处理器、存储器和I/O控制器等硬件单元产生的能耗,然后通过分析ARM指令周期数的规律,设计了指令周期数的相应计算方法,该方法能够快速地计算软件运行时处理器产生的能耗。在高精度指令级嵌入式软件能耗模拟器HMSim中进行了模型实现。实验结果表明,该模型的能耗计算结果与实际仪器测量结果的误差在10%以内,可较准确地反映软件实现方式对系统能耗的影响程度。The energy consumption of embedded software has become a key factor in embedded system design, and it is a fundamental work of analysis and optimization of energy consumption to measure the energy consumption of embedded sol,ware. This paper proposes a statistical model of embedded software energy consumption, including the energy consumptions of processor, memory and I/O controller, etc. Then, by analyzing the instruction cycle of ARM instruction set, a method for computing the instruction cycle number is designed so as to rapidly calculate the processor energy consumption of embedded software. This model has implemented in a high-precision instruction-level energy simulator HMSim. The experimental results show that the error rate of embedded software energy consumption estimated by this model is less than 10% compared with that measured by an electronic instrument. The achieved results also reflect how the embedded system energy consumption is influenced by different software designs.

关 键 词：嵌入式软件能耗 嵌入式系统 能耗统计模型 处理器能耗 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]