计算机科学 ›› 2015, Vol. 42 ›› Issue (Z11): 490-496.
杨良怀,阮忠孝,朱红燕,王亻刍心
YANG Liang-huai, RUAN Zhong-xiao, ZHU Hong-yan and WANG Zhou-xin
摘要： 数据中心的一个重要任务是功率控制,功率封顶是数据中心对服务器设置功率消耗上限的技术。关注的是数据中心节点机一级的动态功率控制机制。基于系统级功率模型构建了进程级功率模型,并将两者整合构成“软功率计”,用于监控系统功率与进程功率；为实现功率封顶,软功率计被集成到闭环控制系统中,设计了功率控制的算法,该算法在控制系统功率不超预算的情况下,系统以较好的性能运行。实验结果表明所提控制机制能有效地控制系统的实时功率,且性能下降较少,同时也可以改善能效,可应用于功率感知的DBMS服务器中。
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