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1. 中国科学院计算技术研究所,北京 100190
2. 中国科学院大学,北京 100049
3. 中国科学院信息工程研究所,北京 100193
[ "邹庆欣(1982-),男,辽宁义县人,中国科学院计算技术研究所博士生,主要研究方向为信息安全和虚拟化技术。" ]
[ "郝志宇(1980-),男,山东蓬莱人,博士,中国科学院信息工程研究所副研究员,主要研究方向为信息安全和虚拟化技术。" ]
[ "云晓春(1971-),男,黑龙江哈尔滨人,博士,中国科学院计算技术研究所研究员、博士生导师,主要研究方向为信息安全、计算机网络等。" ]
网络出版日期:2016-01,
纸质出版日期:2016-01-25
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邹庆欣, 郝志宇, 云晓春. 基于运行阶段特征的虚拟机实时迁移技术[J]. 通信学报, 2016,37(1):170-179.
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.
邹庆欣, 郝志宇, 云晓春. 基于运行阶段特征的虚拟机实时迁移技术[J]. 通信学报, 2016,37(1):170-179. DOI: 10.11959/j.issn.1000-436x.2016021.
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. DOI: 10.11959/j.issn.1000-436x.2016021.
针对预拷贝算法在起始、迭代、结尾 3个阶段所表现出的不同特点,提出了基于运行阶段特征的虚拟机实时迁移技术(LMCOS
live migration based on the characteristics of the operation stages)。起始阶段引入比对初始内存页的变量传输技术以避免未改变内存部分的传输;迭代阶段引入计数排序传输方法以减少内存页的重传;结尾阶段引入调减虚拟机CPU时间片的策略以缩短停机时间。与预拷贝算法相比,LMCOS使停机时间平均减少53%,总迁移时间平均减少65%。
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.
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