一个平衡功耗、性能和公平性的组管理方法

A group management to balance power,performance,and fairness

提出一个平衡功耗、性能和公平性的组管理方法.基于线程行为特征的刻画将系统内所有的线程划分成不同的线程组,结合体系结构提供的功耗管理手段和操作系统的调度策略,实现基于线程组的管理方法,称为TGM(threadgroup-based management).TGM可以达到系统功耗的优化,同时兼顾系统性能和线程间的公平性.真机实验测试数据表明,TGM在保证系统性能和线程间公平性的前提下,系统的功耗平均降低了16.7%.

We present a group management to balance power,performance,and fairness.This management partitions all threads into different groups based on each thread＇s power behavior characteristic,combines dynamic voltage and frequency scaling and dynamic power scaling which are provided by architecture and scheduler of the operating system,and realizes threadgroup-based management（TGM）.TGM optimizes system power under tight system performance and fairness among thread constraints.Experimental results show that TGM reduces power by 16.7% on average with tightly guaranteed system performance and neglected overhead in fairness.