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	Evaluating and Optimizing I/O Virtualization in Kernel-based Virtual Machine (KVM)
	Zhang, Binbin ; Wang, Xiaolin ; Lai, Rongfeng ; Yang, Liang ; Wang, Zhenlin ; Luo, Yingwei ; Li, Xiaoming
	2010
关键词	Virtualization KVM I/O Virtualization Optimization
英文摘要	I/O virtualization performance is an important problem in KVM. In this paper, we evaluate KVM I/O performance and propose several optimizations for improvement. First, we reduce VM Exits by merging successive I/O instructions and decreasing the frequency of timer interrupt. Second, we simplify the Guest OS by removing redundant operations when the guest OS operates in a virtual environment. We eliminate the operations that are useless in the virtual environment and bypass the I/O scheduling in the Guest OS whose results will be rescheduled in the Host OS. We also change NIC driver's configuration in Guest OS to adapt the virtual environment for better performance.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000286443200020&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Computer Science, Theory & Methods; EI; CPCI-S(ISTP); 11
语种	英语
DOI标识	10.1007/978-3-642-15672-4_20
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/293053]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Binbin,Wang, Xiaolin,Lai, Rongfeng,et al. Evaluating and Optimizing I/O Virtualization in Kernel-based Virtual Machine (KVM). 2010-01-01.

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