一种云环境下基于QoS约束的资源分配策略

A RESOURCE ALLOCATION STRATEGY IN CLOUD ENVIRONMENT BASED ON QoS CONSTRAINT

由于资源非均匀分布以及硬件具有较大异构性,导致资源服务时效率不高。针对上述的不足,根据用户对资源的偏好,建立任务与资源的映射模型,设计一种低负载和低成本的资源分配策略,实现系统负载均衡。实验结果表明,该策略在满足Qo S约束的条件下,有效地提高资源利用率。

Resources have the characteristics of non-uniform distribution, and the hardware has quite big heterogeneity as well, thus resutt in poor resources service efficiency. Aiming at these problems, according to users preference for resources, we build the mapping model of the tasks and resources, and design a resource allocation strategy with low load and low cost, thereby implement the system load balance. Experimental result shows that under the condition of satisfying QoS constraints, the strategy can effectively improve the resources utilisation rate.