云计算中基于QoS的调配优化算法

Optimized scheduling algorithm in cloud computing based on QoS

研究和设计云计算环境下一种优化的基于Qo S约束的调配算法,并验证其正确性。在Qo S需求下采用具有服务等级协议(SLA)参数的约束条件,对任务划分优先级,形成优先级队列。SLA服务参数采用二进制权值的方法进行标记,避免了作业分级重叠的情况。在对该任务分配计算资源时,采用资源等级队列的方法,分配合理的工作节点。通过对几种算法的比较实验,验证优化算法运转的鲁棒性和正确性。

An optimized scheduling algorithm in cloud computing environment is designed based on the Qo S constraints. Under the Qo S requirements with the constraint conditions marked by the SLA(Service-Level Agreement) parameters, tasks are graded to form the priority queue. SLA service parameters are marked by the binary weights to avoid overlap of the Job Level. The method of resource level queue is adopted and the work is reasonably assigned to nodes when allocating computing resources to tasks. Correctness and robustness of the optimized algorithm are verified by experiments results comparison with several algorithms.