摘要
在便携式系统中,硬盘能耗约占整个系统能耗的20%.为降低系统能耗,提高系统使用时间,提出了一种硬盘动态电源管理方法:通过读写硬盘寄存器来实现硬盘状态的转换,读取内核相关结构以获取硬盘负载,设计并实现高性能的动态电源管理策略优化算法.实验结果表明,对硬盘进行动态电源管理,能显著降低便携式系统的能耗,证明文中提出的方法是可行的.
Hard disk consumes about 20% of power of a portable system. In order to reduce the power consumption and prolong the service time of portable systems, a method of dynamic power management for hard disk, including the hard-disk state conversion by reading and writing hard disk registers, the load acquisition by reading interrelated kernel structures, and the design and implementation of high-performance policy optimization algorithms, is devised. Experimental results indicate that the dynamic power management of hard disk helps to significantly reduce the power consumption of portable systems, and that the proposed management method is feasible.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第1期97-101,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
粤港关键领域重点突破项目(2007A010101003)
广东省-教育部产学研结合项目(2007B090200018)
关键词
硬盘
状态转换
负载获取
动态电源管理
hard disk
state conversion
load acquisition
dynamic power management
