| 面向I/O优化调度器的磁盘特征提取 |
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| 引用本文： | 张巨,肖予钦,景宁,陈宏盛.面向I/O优化调度器的磁盘特征提取[J].国防科技大学学报,2003,25(4):53-58. |
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| 作者姓名： | 张巨 肖予钦 景宁 陈宏盛 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南,长沙,410073 |
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| 摘 要： | 外存I/O一直是影响I/O密集型应用系统性能的决定性因素。在系统分析I/O优化调度策略及其对磁盘特征参数的需求的基础上,提出了一组面向I/O优化调度器的磁盘特征抽取方法。这些抽取方法已经被证明是高效的,并且在Traxtents Cello调度器的实现中得到采用。
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| 关 键 词： | 磁盘驱动器 SCSI IDE 磁盘调度 磁盘特征抽取 |
| 文章编号： | 1001-2486(2003)04-0053-06 |
| 收稿时间： | 3/5/2003 12:00:00 AM |
| 修稿时间： | 2003年3月5日 |
The Extraction of Disk Characteristics for I/O Optimized Schedulers |
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| ZHANG Ju,XIAO Yuqin,JING Ning and CHEN Hongsheng.The Extraction of Disk Characteristics for I/O Optimized Schedulers[J].Journal of National University of Defense Technology,2003,25(4):53-58. |
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| Authors: | ZHANG Ju XIAO Yuqin JING Ning and CHEN Hongsheng |
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| Institution: | College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | IOs of the external memory are still the key factor to the performance of IO-intensive applications. Based on the systematical analysis of I/O-optimized scheduling policies and their requirement to characteristics parameters of disk, this paper introduces a set of I/O-scheduler-oriented disk characteristics extracting methods. These methods have been proved efficient and introduced into the implementing of Traxtents-Cello scheduler. |
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| Keywords: | disk driver SCSI IDE disk scheduling disk charact eristics extraction |
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