基于运行阶段特征的虚拟机实时迁移技术

doi:10.11959/j.issn.1000-436x.2016021

Abstract

Abstract:

Being directed against the different characteristics of start, iterative and end stages of pre-copy algorithm, live migration based on the characteristics of operation stages referred to as LMCOS was proposed. In the start stage, the technique of comparing initial memory page and sending variables was brought to avoid the transferring of unmodified memory. During the iterative stage, the transmitting method of counting sort was brought to reduce retransmitting mem-ory pages. In the end stage, the police of reducing time slices of virtual machine's CPU was brought to shorten the down-time. Compared with pre-copy algorithm, LMCOS reduces downtime by 53% and total migration time by 65% on average.

Key words: live migration, pre-copy, characteristics of the operation stages, virtual machine

xin ZOUQing,yu HAOZhi,chun YUNXiao. Live migration based on the characteristics of operation stages for virtual machine[J]. Journal on Communications, 2016, 37(1): 170-179.

Figures/Tables 17

References 15

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前一轮中的状态	临近后轮的状态	发送
1	1	否
1	0	是
0	0	否
0	1	否

负载	CPU	网速	磁盘	内存
Nbench	90%~100%	0	0	0~5%
Sysbench	0~60%	0	0	70%~80%
Webbench	60%~85%	60~80 Mbit/s	0	0~1%
Dbench	0~5%	0	20~30 Mbit/s	0~3%

Live migration based on the characteristics of operation stages for virtual machine

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