基于Xen的X86虚拟机性能调优

Performance Tuning of Xen-based X86 Virtual Machine

目前针对虚拟机环境的性能测试工具很少,测试主要还停留在运行一些基准测试程序的基础上,对虚拟机性能的调优帮助有限。文章提出了一个Xen虚拟机环境下的性能调试工具Exentrace,介绍了其Lasylog和Smartfilter两大特性。演示了利用Exentrace在不同负载的虚拟机上收集、分析数据。利用这些数据发现并解决了一个关键的性能问题。

Now there are few efficient ways to tune the performance of virtual machine, excepts utilizing those general benchmark tools. This paper presents Exentrace, a low level Xen virtual machine performance tuning tools, with two keys features： Lasylog and Smartfilter. It is used to collect and parse data of virtual machines with different workloads. Looking into the data, it successfully resolves a critical performance issue.