| 虚拟化云平台中实时任务容错调度算法研究 |
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| 引用本文： | 王 吉,包卫东,朱晓敏.虚拟化云平台中实时任务容错调度算法研究[J].通信学报,2014,35(10):20-180. |
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| 作者姓名： | 王 吉 包卫东 朱晓敏 |
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| 作者单位： | 国防科学技术大学 信息系统工程重点实验室，湖南 长沙 410073 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目（20134307110029）；国家自然科学基金资助项目（61104180）；西南电子电信技术研究室公开课题基金资助项目（2013001） |
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| 摘 要： | 为了在云平台下满足实时系统的高可靠性要求，提出了一种虚拟化云平台中的容错调度算法（FSVC, fault-tolerant scheduling algorithm in virtualized clouds），FSVC通过主副版本方法来实现对物理主机的容错，采用副版本重叠技术与虚拟机迁移技术来提高算法的调度性能。为了达到容错的要求，分析了这2种技术应满足的约束。此外，FSVC中包含了一种两阶段策略以进一步提高算法性能。大量仿真实验表明，在虚拟化云平台中，FSVC能有效地提高系统可调度性与资源利用率。
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| 关 键 词： | 虚拟化云平台 容错调度 主副版本方法 实时系统 |
| 收稿时间： | 9/8/2013 12:00:00 AM |
Fault-tolerant scheduling algorithm for
real-time tasks in virtualized cloud |
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| Ji WANG,Wei-dong BAO,Xiao-min ZHU.Fault-tolerant scheduling algorithm for
real-time tasks in virtualized cloud[J].Journal on Communications,2014,35(10):20-180. |
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| Authors: | Ji WANG Wei-dong BAO Xiao-min ZHU |
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| Institution: | Science and Technology on Information Systems Engineering Laboratory,National University of Defense Technology,Changsha 410073,China |
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| Abstract: | In order to achieve the high reliability of real-time systems in virtualized clouds, a fault-tolerant scheduling algorithm for virtualized clouds named FSVC that used primary-backup approach to tolerate physical host failures was proposed. FSVC strived to enhance the performance by employing backup-backup overlapping technique and virtual Machine migration technique. The constraints of the two techniques were elaborately analyzed to realize fault tolerance. Besides, a two-phase policy was incorporated in FSVC to further improve the performance. Simulation experiments demonstrated that FSVC can improve the schedulability and resource utilization effectively in virtualized clouds. |
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| Keywords: | virtualized cloud fault-tolerant scheduling primary-backup approach real-time system |
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