计算机工程2011，Vol.37Issue(9)：41-43,3.DOI:10.3969/j.issn.1000-3428.2011.09.014
基于龙芯的软件层动态变频研究与实现
Research and Implementation of Software Layer Dynamic Frequency Scaling Based on Loongson
摘要
Abstract
Loongson 2F processor provides a register for software to scale the frequency. For producing lower power consumption of Loongson computer, this paper uses CPUFreq driver framework in Linux kernel, writes driver code of CPUFreq for Loongson 2F processor, and realizes the dynamic frequency scaling of 2F processor. An experiment to measure the power saving and performance of CPUFreq is done. Experimental results show that OnDemand adjusting strategy of CPUFreq provides better synthesized effect.关键词
龙芯2F/动态变频/时钟/CPUFreq子系统/调控策略Key words
Loongson 2F/ dynamic frequency scaling/ clock/ CPUFreq subsystem/ adjusting strategy分类
信息技术与安全科学引用本文复制引用
顾丽红,林志强,吴少刚..基于龙芯的软件层动态变频研究与实现[J].计算机工程,2011,37(9):41-43,3.基金项目
"核高基"重大专项(2009ZX01029-001-003) （2009ZX01029-001-003）
国家"863"计划基金资助项目(2006AA010201) （2006AA010201）
江苏省科技成果转化基金资助项目(BA2004029) （BA2004029）
