摘要
当虚拟机技术应用在服务器整合等领域时,虚拟机之间的通信会非常频繁,虚拟机本身的通信机制将成为瓶颈。目前,在Xen中不同的虚拟机间进行通信时,不仅通信路径长,而且虚拟机间的切换会造成很大的性能开销。在深入研究Xen虚拟机通信机制的基础上,提出了一种基于共享内存的通信方法,用于提高同一台物理机器上不同虚拟机之间通信的性能。实验结果表明,该方法极大地增加了虚拟机之间的通信带宽,并且有效平衡了各个虚拟机的CPU利用率。
When the virtual machine technique is applied to many fields such as the server integration,the communication inter virtual machines will be very complex and frequent,and so the communication mechanism of the virtual machines themselves will become a bottleneck.Currently,when one guest virtual machine in Xen wants to communicate with another on the same physical machine,it must extend the data transfer path and degrade the inter-domain communication performance.On the basis of an intensive study of the communication of the Xen virtual machines,it puts forward a communicating method based on the shared memory,which is used to improve the performance of the communication between different virtual machines on one physical machine.The experimental result shows that this method has greatly increased the communication bandwidth between virtual machines,and effectively balanced the CPU utilization of every virtual machine as well.
出处
《计算机技术与发展》
2011年第7期5-8,12,共5页
Computer Technology and Development
基金
国家自然科学基金(60273087)
西北工业大学基础研究基金(W018101)
陕西省自然科学基金(SJ08F25)
关键词
虚拟机
通信
XEN
共享内存
带宽
virtual machine
communication
Xen
shared memory
bandwidth
