SmartSaver:将闪存驱动器变成移动计算机的磁盘节能器

ISLPED'06 Proceedings of the 2006 International Symposium on Low Power Electronics and Design Pub Date : 2006-10-04 DOI:10.1145/1165573.1165674

Feng Chen, Song Jiang, Xiaodong Zhang

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引用次数: 83

摘要

在移动计算机中，硬盘要消耗大量的能量。现有的动态电源管理策略通常采用保守的方法来节省磁盘能源，磁盘能源消耗仍然是一个严重的问题。与此同时，闪存正在成为几乎每个笔记本电脑用户旅行时必备的便携式存储设备。在本文中，我们提出了另一个高度期望使用闪存驱动器-节省磁盘能源。这是通过使用闪存驱动器作为缓存和预取磁盘数据的备用缓冲区来实现的。我们的设计通过仔细和深思熟虑的考虑闪存驱动器的特定特性，显著地延长了磁盘空闲时间。跟踪驱动的模拟表明，将相对少量的数据写入闪存驱动器可以节省高达41%的磁盘能量

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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SmartSaver: Turning Flash Drive into a Disk Energy Saver for Mobile Computers

In a mobile computer the hard disk consumes a considerable amount of energy. Existing dynamic power management policies usually take conservative approaches to save disk energy, and disk energy consumption remains a serious issue. Meanwhile, the flash drive is becoming a must-have portable storage device for almost every laptop user on travel. In this paper, we propose to make another highly desired use of the flash drive - saving disk energy. This is achieved by using the flash drive as a standby buffer for caching and prefetching disk data. Our design significantly extends disk idle times with careful and deliberate consideration of the particular characteristics of the flash drive. Trace-driven simulations show that up to 41% of disk energy can be saved with a relatively small amount of data written to the flash drive

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ISLPED'06 Proceedings of the 2006 International Symposium on Low Power Electronics and Design

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