Towards platform level power management in mobile systems
Towards platform level power management in mobile systems
复制标题
迈向移动系统中的平台级电源管理
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Paul V. Gratz
中科院分区：
文献类型：
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作者：
David Kadjo;Ümit Y. Ogras;R. Ayoub;M. Kishinevsky;Paul V. Gratz
提出了一种适用于移动平台的平台级电源管理框架。在满足系统级性能和功率预算约束的同时，所提出的框架将总体平台能量最小化。为此，我们使用通过性能监控计数器收集的动态信息构建分析性能和功率模型。利用这些模型，我们设计了两个不同的闭环控制器，以确保在存在动态负载变化的情况下，性能和功率目标都能达到并保持不变。在Android平台上进行的实验评估显示，平台级节能高达8%，CPU节能高达15%。
This paper presents a platform-level power management framework for mobile platforms. The proposed framework minimizes the overall platform energy while meeting system level performance and power budget constraints. To this end, we construct analytical performance and power models using dynamic information collected via performance monitoring counters. Using these models, we design two different closed loop controllers to ensure that both the performance and the power targets are achieved and maintained in the presence of dynamic workload variations. Experimental evaluations performed on an Android platform show up to 8% energy savings at the platform level and up to 15% CPU energy savings.