摘要
动态电压频率调节技术(DVFS)是从软件层面进行系统功耗管理的重要技术.本论文针对交互式系统的特点,首先分析了当前使用的DVFS策略的不足之处,然后提出并实现了一种适用于交互式系统的DVFS策略.该策略在保障用户体验的前提下对移动设备进行功耗优化.实验结果证明,对于大多数应用能达到10%以上的功耗优化效果,部分应用最高有超过30%的功耗降低.
Dynamic voltage and frequency scaling technique （DVFS） has been introduced to manage system power at software level. In this paper, we firstly discussed the disadvantages of commercial CPU frequency governors on interactive systems. Then, we proposed and implemented a new DVFS scheme aimed at Interactive Systems. The scheme is designed to save system power based on the premise that user experience must not be declined. Experimental results demonstrated that most application can save more than ten percent power compared with the original Ondemand DVFS governor, and even more than thirty percent for some other applications.
出处
《计算机系统应用》
2014年第11期28-33,共6页
Computer Systems & Applications
基金
国家自然基金(61272131
61202053)
江苏省自然科学基金(SBK201240198)
江苏省产学研前瞻性联合研究项目(BY2009128)
关键词
交互式系统
功耗优化
行为分析
DVFS
Android
interactive system
DVFS
power
task behavior
Android
