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	Improving the performance of hypervisor-based fault tolerance
	Zhu, Jun ; Dong, Wei ; Jiang, Zhefu ; Shi, Xiaogang ; Xiao, Zhen ; Li, Xiaoming
	2010
英文摘要	Hypervisor-based fault tolerance (HBFT), a checkpoint-recovery mechanism, is an emerging approach to sustaining mission-critical applications. Based on virtualization technology, HBFT provides an economic and transparent solution. However, the advantages currently come at the cost of substantial overhead during failure-free, especially for memory intensive applications. This paper presents an in-depth examination of HBFT and options to improve its performance. Based on the behavior of memory accesses among checkpointing epochs, we introduce two optimizations, read fault reduction and write fault prediction, for the memory tracking mechanism. These two optimizations improve the mechanism by 31.1% and 21.4% respectively for some application. Then, we present software-superpage which efficiently maps large memory regions between virtual machines (VM). By the above optimizations, HBFT is improved by a factor of 1.4 to 2.2 and it achieves a performance which is about 60% of that of the native VM. ? 2010 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/IPDPS.2010.5470357
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/295613]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhu, Jun,Dong, Wei,Jiang, Zhefu,et al. Improving the performance of hypervisor-based fault tolerance. 2010-01-01.

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