计算机工程2017，Vol.43Issue(1)：1-7,7.DOI:10.3969/j.issn.1000-3428.2017.01.001
I/O密集型虚拟机的域间通信优化方法
Inter-domain Communication Optimization Method of I/O Intensive Virtual Machines
摘要
Abstract
The virtual machines which are I/O intensive need to communicate with each other frequently.In order to solve the problems of low efficiency and big latency in inter-domain communication of virtual machines,an inter-domain communiaction optimization method between driver domain and user domain based on Double Ring Buffer (DRB) is proposed.Two ring buffers in user domain are built to be shared with a driver domain,and the access rights of the driver domain is controlled by the virtual machines monitor according to I/O task tables,which reduces the overhead of processor mode switching and memory mapping.Experimental results show that the inter-domain communication mechanism after using the optimization method has higher throughput and lower delay compared with original interdomain virtual machine communication mechanism,and it greatly improves the inter-domain communication performance of the user domain and drive domain.关键词
I/O密集型虚拟机/域间通信/双环形缓冲区/共享内存/授权表Key words
I/O intensive virtual machine/inter-domain communication/Double Ring Buffer(DRB)/shared memory/grant table分类
信息技术与安全科学引用本文复制引用
郭松辉,李清宝,孙瑞辰,孙磊..I/O密集型虚拟机的域间通信优化方法[J].计算机工程,2017,43(1):1-7,7.基金项目
国家“973”计划项目(2011CB311801). （2011CB311801）
