| 基于Xen的虚拟磁盘调度算法改进 |
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| 引用本文： | 刘可超,李小勇.基于Xen的虚拟磁盘调度算法改进[J].微型电脑应用,2010,26(4):51-52,58. |
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| 作者姓名： | 刘可超 李小勇 |
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| 作者单位： | 上海交通大学信息安全工程学院,上海,200240 |
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| 摘 要： | Xen目前所采用的I/O调度算法能够较好的保证公平性;但在实际应用中,不同的虚拟机可能有不同的性能需求。该文研究了Xen虚拟存储的实现和I/O调度算法的原理,提出了基于反馈的动态优先级调度策略,通过对比测试验证了磁盘带宽在不同虚拟机之间的按需分配。
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| 关 键 词： | Xen 存储虚拟化 I/O调度算法 |
Xen-based Virtual Disk Scheduling Algorithm |
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| LIU Kechao.Xen-based Virtual Disk Scheduling Algorithm[J].Microcomputer Applications,2010,26(4):51-52,58. |
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| Authors: | LIU Kechao |
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| Affiliation: | LIU Kechao(School of Information Security Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | Xen's current I/O scheduling algorithm can basically guarantee fairness in practical usage;however,different virtual machines may have different performance requirements.In this paper,Xen's storage virtualization and I/O scheduling algorithm are analyzed.A dynamic priority scheduling scheme based on feedback mechanism is brought forward,and contrast experiments show that disk bandwidth is allocated as needed between virtual machines. |
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| Keywords: | Xen |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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