中文摘要：

资源竞争是云计算开放运行环境下的特点之一,正确分析自利用户在竞争中的行为是复杂动态环境下分析云计算服务性能的基础.针对IaaS云中共享用户之间服务性能的相关性,将SaaS提供者作为自利主体及IaaS用户,分析如何分解服务请求流,同时利用本地和Iaas云资源以获得最佳的服务响应速度,提出一种基于排队理论的云计算服务分流博弈模型（CSDG）,对其进行纳什均衡策略和社会最优策略分析,证明该博弈存在唯一的纯策略纳什均衡,并将其与社会最优行为进行对比.

英文摘要：

Resources competition is one of the characteristics of the cloud computing in open operation environment,and a proper analysis of the behaviors of self-interest users in competition is a basis for analysis of cloud service performance in a sophisticative dynamic environment.Aimed at the correlativity of the service performance shared by the users in the IaaS cloud,it is tried to analyze how the SaaS provider as a self-interest entity and a user of IaaS,as well to split service request flow by using simultaneously local resource and IaaS cloud resource to get optimal service response speed.A cloud computation service diffluence game（CSDG）model is presented based on queueing theory and the model is analyzed in terms of Nash equilibrium strategy and socially optimal strategy,so that it is verified that the game will have a unique Nash equilibrium,which is then compared with the social optimum behavior.