基于虚拟机动态迁移负载均衡算法的研究与改进

Research and Improvement of Load Balancing Algorithm Based on Virtual Machine Dynamic Migration

为了提升资源利用率、合理分配资源、平衡物理服务器负载资源,文章针对基于虚拟机动态迁移负载均衡算法在权值动态调整受限方面的不足,在原始虚拟机迁移负载均衡算法基础上引用权值概念,优化了基于虚拟机迁移的负载均衡算法。根据权值可以动态选择合适的虚拟机、目标机进行迁移,从而降低了迁移虚拟机造成的过量开销。解决在虚拟机迁移的负载均衡算法中受权值动态限制选择合适虚拟机和目标机而造成的过量开销问题。通过仿真实验,从通信开销、迁移开销和负载性能3方面对改进前后的算法结果进行分析对比,得出改进的虚拟机动态迁移负载均衡算法能够更高效地改善资源负载均衡能力。

To improve resource utilization,allocate resources,and balance physical server load resources and aiming at the limitation of dynamic weight adjustment in virtual machine dynamic migration load balancing algorithm,through adding dynamic weight calculation method on the basis of original virtual machine migration load balancing algorithm,this paper proposes an improved virtual machine dynamic migration load balancing algorithm.According to the weight,the appropriate virtual machine and the target machine can be selected for migration,so the migration time can be reduced.It solves the migration time problem that is caused by the weighted value of the limitation in the virtual machine load balancing algorithm to choose to the virtual machine and the target machine.The simulation results show that the improved dynamic migration load balancing algorithm of virtual machine can improve the load balancing ability of resources more effectively from three aspects:communication overhead,migration overhead and load performance.