一种基于CPU负载平均的负载均衡算法  

A Load-balancing Algorithm Based on Average CPU Load

作　　者：何龙[1] 戴新发[1] 伍华凤[1] 昌玉芳[1] 

机构地区：[1]武汉数字工程研究所,武汉430074

出　　处：《计算机与数字工程》2012年第8期22-24,共3页Computer & Digital Engineering

摘　　要：与传统分布式集群环境迁移进程不同,虚拟计算环境下的迁移实体是虚拟机,文章针对虚拟机粒度较大的特性,提出了一种基于虚拟机迁移的负载均衡算法。该方法用CPU预测技术避免呈下降趋势时发生不必要迁移。文章的算法采用全局平均的负载均衡策略,只有当负载差值大于一定值才触发迁移。Different with migrating process in traditional distributed computing environment,the load balancing in virtual computing environment is realized through migrating virtual machine who＇s intensity is high,this paper presents a load balancing algorithm based on the virtual machine migration.The CPU forecast technology avoid a tiny and temporary load peak value triggering unnecessary migration.This paper uses the global average load-balancing strategy,and trigger migration only when the load difference is greater than a certain value.

关 键 词：负载均衡 虚拟机 全局平均 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]