[1]费 薇,李淑英,衷 宜,等.基于预拷贝的虚拟机内存状态动态迁移优化[J].南京理工大学学报(自然科学版),2015,39(05):619.
 Fei Wei,Li Shuying,Zhong Yi,et al.Memory state transfer optimization for VM live migration based pre-copy approache[J].Journal of Nanjing University of Science and Technology,2015,39(05):619.
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基于预拷贝的虚拟机内存状态动态迁移优化
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
39卷
期数:
2015年05期
页码:
619
栏目:
出版日期:
2015-10-31

文章信息/Info

Title:
Memory state transfer optimization for VM live migration based pre-copy approache
作者:
费 薇1李淑英2衷 宜1徐 建1
1南京理工大学 计算机科学与工程学院,江苏 南京 210094; 2.商丘工学院 信息与电子工程学院,河南 商丘 476000
Author(s):
Fei Wei 1Li Shuying2Zhong Yi 1Xu Jian 1
1.School of Computer Science and Engineering,NUST,Nanjing 210094,China;
2.Information and Electronic Department,Shangqiu Institute of Technology,Shangqiu 476000,China
关键词:
虚拟机 预拷贝 动态迁移 脏页率
Keywords:
virtual machines pre-copy live migration dirty probabilities
分类号:
P315.69
摘要:
针对预拷贝迁移算法存在拷贝效率低、总迁移时间长和迁移页面多等问题,提出了一种基于预拷贝的虚拟机内存迁移优化方法。该方法根据迁移链路带宽动态确定迁移窗口大小,根据时间局部性和空间局部性原理计算页面脏页率,并通过页面脏页率来确定待迁移页面,实现了对页面脏页率更全面的预测,尽量避免了不必要的重传。实验结果表明,该文优化方法在停机时间、总迁移时间和迁移页面数量等3个方面优于现有的预拷贝方法。
Abstract:
As the pre-copy approaches of live VM migration have issues of low copy efficiency,long total migration time and large number of transferred pages,a method of VM memory state transfer optimization based the pre-copy approaches is proposed here.The size of migration window is determined by the link bandwidth dynamically.The dirty probability of each dirty page is calculated in accordance with the temporal locality and spatial locality principles,and the pages to be transferred are determined by the dirty probabilities.The method can predict the dirty probability more fully and avoid unnecessary retransmission as much as possible.The experiment results show that the optimized approach is better than the existing pre-copy approaches in terms of the downtime,the total migration time and the number of transferred pages.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-06-01 修回日期:2015-07-08
基金项目:国家自然科学基金(61300053)
作者简介:费薇(1991-),女,硕士生,主要研究方向:虚拟化技术,E-mail:847645868@qq.com; 通讯作者:徐建(1979-),男,博士,副教授,主要研究方向:虚拟化技术、数据挖掘,E-mail:dolphin.xu@ njust.edu.cn。
引文格式:费薇,李淑英,衷宜,等.基于预拷贝的虚拟机内存状态动态迁移优化[J].南京理工大学学报,2015,39(5):619-624.
投稿网址:http://zrxuebao.njust.edu.cn
DOI:10.14177/j.cnki.32-1397n.2015.39.05.018
更新日期/Last Update: 2015-10-31