动态电压调整的系统级功耗管理模型

动态功耗管理技术还需更多的系统工作模型理论研究,该文提出了一种新的采用适于动态电压调整的系统级功耗管理方法,把电压调整比例因子从工作状态建模中独立出来进行优化,能更有效地调整延时和能耗的折衷。分别从理论分析和系统仿真的方法,对比了不同的固定电压策略和动态电压调整策略的工作性能。结果表明,采用上述理论模型优化搜索得到的电压调整策略实现在设定的不同工作条件下具有较强的速度功耗调节能力,能够满足具体工作的性能要求,并且节省很大的功耗。

System-level power management model based on dynamic voltage scaling technology

This paper presents a theoretical model for system-level power management based on adaptive voltage scaling, in which the voltage-scaling factor was used to indicate different operating states so that the delay and power consumption can be evaluated together more efficiently. Different fixed voltage strategies and dynamic voltage scaling strategies were compared theoretically and in simulations. The results indicate that the optimized dynamic voltage scaling strategy proves better speed-power accommodating ability and better performance with much lower power consumption.