| 基于磁盘阵列的多队列实时I/O调度算法 |
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| 引用本文： | 程鹏,张江陵,冯丹.基于磁盘阵列的多队列实时I/O调度算法[J].华中科技大学学报(自然科学版),1999,27(4):1-2. |
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| 作者姓名： | 程鹏 张江陵 冯丹 |
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| 作者单位： | 华中理工大学计算机科学与技术学院 |
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| 基金项目： | 国家自然科学基金,国防预研基金 |
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| 摘 要： | 研究磁盘阵列的Ｉ／Ｏ调度问题．给出了建立在实时操作系统上的系统调度模型；在分析磁盘的Ｉ／Ｏ调度算法的基础上，提出一种适合磁盘阵列的多队列实时调度算法．该算法为每个磁盘指定了一个请求队列，并根据请求之间的依赖关系确定可并行执行的任务组．测试结果证明，新算法具有很好的性能
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| 关 键 词： | 磁盘阵列系统 实时操作系统 I/O调度 |
| 修稿时间： | 1998-11-23. |
Multi-Queue Real-Time I/O Scheduling Algorithm Based on Disk Array |
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| Cheng Peng,Zhang Jiangling,Feng Dan.Multi-Queue Real-Time I/O Scheduling Algorithm Based on Disk Array[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1999,27(4):1-2. |
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| Authors: | Cheng Peng Zhang Jiangling Feng Dan |
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| Abstract: | The I/O scheduling problem of disk array is discussed. The
system scheduling model built on real time operating system is given. On the basis of disk I/O
scheduling algorithm, a multi queue real time I/O scheduling algorithm based on disk array is
designed. A request queue is given to every disk. The correlation between requests is used to
decide the task group that can be executed in parallel. The performance is measured. It is seen
from the result that this algorithm has very excellent performance. |
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| Keywords: | disk array system real time operating system I/O scheduling algorithm |
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