嵌入式系统节能能力度量模型研究

The Research of Energy-Saving Capability Measurement Model in Embedded System

针对系统节能能力度量对象单一,且很多指标无法量化的问题,从操作系统层和硬件层两方面综合考虑,构建出了嵌入式系统节能能力度量模型(ESCMM)。该模型从完整的嵌入式系统角度,给出了节能能力度量的统一标准。此外,还针对节能综合评价结果不能直接刻画出节能水平的问题,在Roofline模型的基础上进行了改进,提出了基于Roofline模型的节能能力分析方法,并通过实例进行了验证,有效地找出了系统能耗的瓶颈。

With the continuous development of embedded technology,the energy consumption problem becomes more and more prominent. There are a lot of measurement methods of system energy-saving level at home and abroad. Some researchers measure the energy-saving level from DMP,DVS,etc. but they did not support a unified criterion; Some researchers evaluated the energy-saving method from the perspective of different hardware devices,but they did not quantify the indexes. In this paper,aimed at single measure objects of system energy saving ability and many indicators unquantifiable issues,both the operating system level and hardware level are considered to construct the energy-saving capability embedded system measurement model（ ESCMM）. The model gives a measure of uniform standards of energy-saving capability from a complete embedded system perspective. In addition,in this paper,the Roofline model is improved,and the energy saving capacity analysis method based on the Roofline model is put forward,which is verified by an example and at the same time the bottleneck of the system energy consumption effectively is find out.