面向网络性能优化的虚拟计算资源调度机制研究

doi:10.11959/j.issn.1000-436x.2016161

Abstract

Abstract:

A deep insight into the relationship between vCPU scheduling and I/O transmit in Xen was provided.Then an effective and lightweight recognition method,through which could identify the so-called NSVM (network queuing sensi-tive virtual machine) that was more vulnerable to the congestion in I/O transmit was put forward.Furthermore,a novel mechanism for resource assignment and scheduling called Diff-Scheduler was proposed.It could schedule the vCPU of the NSVM more frequently than other VM in different pools independently.Evaluations based on a prototype of Xen platform featured Diff-Scheduler show that the proposed mechanism significantly improves the network performance of VM.Specifically,comparing with the default mechanism of Xen,Diff-Scheduler proposed jointly enhances throughput,latency remarkably and ensures the fairness of resource allocation at the same time.

Key words: cloud computing, virtualization, vCPU scheduling, network queuing sensitive, virtual computing resource assignment

Yu-wei WANG,Min LIU,Bing-yi FANG,Chen-chong QIN,Xiao-long YAN. Study on virtual computing resource scheduling for network performance optimization[J]. Journal on Communications, 2016, 37(8): 105-118.

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References 21

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