Power measurement as the basis for power management
Power measurement as the basis for power management
复制标题
功率测量作为功率管理的基础
DOI：
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复制
发表时间：
2005
期刊：
影响因子：
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通讯作者：
Gernot Heiser
中科院分区：
文献类型：
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作者：
David C. Snowdon;Stefan M. Petters;Gernot Heiser
能源已成为计算机系统设计的关键组成部分，特别是在嵌入式空间中，能源往往是有限的。虽然硬件设计对系统功耗的影响更为显着，但设计良好的系统和应用软件对控制能耗做出了重要贡献。为了优化软件系统以降低能耗，需要反馈。传统的技术严重依赖于系统的模型，具有各种缺点。我们研究的好处，使用实时功率测量使用统计采样的离线和在线反馈应用程序的功耗。制造硬件平台，修改操作系统，并进行广泛的验证。我们的结论是，这个想法显示出的承诺，并证明进一步的调查。
Energy has become a critical component of computer system design, particularly in the embedded space where the source of energy is often finite. While hardware design has the more significant effect on the system’s power consumption, well designed system and application software make an important contribution to controlling the energy consumed. In order to optimise software systems to reduce energy consumption, feedback is required. Traditional techniques rely heavily on models of the system which have various disadvantages. We examine the benefits of using live power measurements using statistical sampling for both off-line and on-line feedback on application power consumption. A hardware platform is manufactured, operating system modifications made, and extensive validation carried out. We conclude that the idea shows promise and justifies further investigation.