高技术通讯2024，Vol.34Issue(1)：25-32,8.DOI:10.3772/j.issn.1002-0470.2024.01.003
基于功耗计数器的处理器功耗实时估算方法
Real-time estimation method of processor power via power counters
摘要
Abstract
This paper proposes a real-time estimation method for processor power consumption based on power consump-tion counters,aiming at the shortcomings of the existing two classes of real-time estimation methods for processor power consumption.The proposed method combines the advantages of performance counter-based and circuit-based methods.Using the power consumption counter to record the number of changes in circuit signals closely related to processor power consumption,the method can estimate the processor's power consumption in real-time with a small observation granularity,and has lower hardware overhead.This paper implements and evaluates the method on the Loongson GS364 processor.The results show that using 16 power counters can achieve an estimation error of 0.83%within a granularity of 512 clock cycles,and its hardware overhead is only 0.063%of the total processor area.关键词
功耗估算/功耗计数器/功耗管理/性能事件计数/LASSO回归Key words
power consumption estimation/power consumption counter/power consumption management/performance counter/LASSO regression引用本文复制引用
贾凡,章隆兵..基于功耗计数器的处理器功耗实时估算方法[J].高技术通讯,2024,34(1):25-32,8.基金项目
①中国科学院战略性先导科技专项(XDC05020100)资助项目. （XDC05020100）
