【摘要】 为了满足云计算中服务提供商和服务消费者双方协商的服务等级协议(SLA),提出在云计算环境下采用元调度和本地调度两层框架结构;在每层上采用了多级反馈队列调度算法,设置了基于截止期限、短作业优先等不同优先级的队列,并设计元调度器完成资源的分配和监控。实验仿真结果表明,该调度策略可以满足用户对作业处理时间的需求,保障了云计算SLA。更多还原

【Abstract】 In order to meet service level agreements between the service provider and the service consumer in cloud computing,this paper proposed a framework with meta-level scheduling and local-level scheduling in the cloud environment.It uses multi-level feedback queue scheduling algorithm in each level.The scheduling algorithm with job prioritization is used to give more priority for deadline based and shortest jobs.Also,the meta-scheduler is designed to allocate and monitor resources.Finally,the experiments simulated show that our strategy can satisfy the consumer on response time of job and can meet the SLA.更多还原