基于休眠模式与注册服务的云架构性能优化问题的研究

On the performance optimization for the cloud architecture with sleep-mode and registration service

兼顾能量节省与匿名用户的服务质量,结合免费云服务与注册云服务,提出了一种基于休眠模式的新型云架构。将免费云服务抽象为第一次服务,注册云服务抽象为第二次服务,休眠抽象为休假,建立了一个带有二次可选服务且部分虚拟机异步多重休假的排队模型。运用矩阵几何解方法求解排队模型的稳态分布,研究了系统节能率与匿名用户平均响应时间等性能指标。综合匿名用户的服务收益与等待服务所消耗的时间成本,建立了收益函数。利用数值结果揭示了匿名用户纳什均衡到达率与社会最优到达率之间的关系。为实现新型云架构下的社会最优提供理论依据。

In order to balance the energy conservation and the service quality for anonymous users,a novel sleep-mode based architecture with the free cloud service and the registration cloud service was proposed.Regarding the free cloud service as the first service,the registration cloud service as the second service and the sleep sate as the vacation,a partial asynchronous multiple vacation queueing model with a second optional service was built.Applying the method of a matrix- geometric solution,the steady-state distribution of the queueing model was derived,and then the energy saving rate of system as well as the average response time of anonymous users were estimated.By considering the benefits from accessing the cloud service and the time cost on waiting for the cloud service,benefit functions were constructed.Numerical results were carried out to reveal the relationship between Nash equilibrium arrival rate and social optimal arrival rate of anonymous users.The proposed cloud architecture provides a theoretical basis for social optimization.