云计算环境下实时流媒体业务的性能研究

摘要

由于虚拟化环境不同于常规的物理集群，流媒体业务迁移至云中后会遇到问题。针对这一现象，搭建私有云环境，部署流媒体系统，进行一系列性能测试和研究。实验结果表明，在引入了虚拟化环境后，由于无法有效进行资源隔离以及共存虚拟机的存在，流媒体业务的性能明显下降，分析结果为进一步深入研究云环境下如何有效提高流媒体业务的性能奠定了很好的基础。%Virtualization environment is different from traditional physical cluster ,so migrating streaming system into cloud may encoun‐ter some problems .To address this situation ,a multimedia streaming system in a private cloud was deployed .A series of performance benchmark experiments were designed and conducted .Analyses show that ,in the virtualization environment ,the performance of multi‐media streaming system seriously degrades due to inefficient resource isolation and the introduction of co‐located virtual machines .The re‐search contributes to improving the performance of multimedia streaming system in cloud computing environments .