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| 移动数据库客户端缓存一致性的分析研究 | |
| 引用本文： | 王潜平,杨婧,管廷昭.移动数据库客户端缓存一致性的分析研究[J].山东大学学报(理学版),2007,42(11):53-58. |
| 作者姓名： | 王潜平 杨婧 管廷昭 |
| 作者单位： | 1. 中国矿业大学,计算机科学与技术学院,江苏,徐州,221116 2. 盐城工学院,优集学院,江苏,盐城,224003 3. 南京信息工程学院,网络信息中心,江苏,南京,210044 |
| 摘 要： | 对移动数据库环境下2种缓存一致性维护策略进行了比较，比较了单个方法的有效性，以及它们结合执行时的性能。分析表明每一种方法在一定程度上都能够提高性能，但若将其有效结合起来，则可提高缓存命中率，降低网络吞吐量，从而改善缓存一致性的性能。 |
| 关 键 词： | 移动数据库 缓存一致性 离散Markov模型 对等覆盖区域 |
| 文章编号： | 1671-9352（2007）11-0053-06 |
| 收稿时间： | 2007-06-18 |
Client caching coherency in a mobile database |
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| WANG Qian-ping,YANG Jing,GUAN Ting-zhao.Client caching coherency in a mobile database[J].Journal of Shandong University,2007,42(11):53-58. | |
| Authors: | WANG Qian-ping YANG Jing GUAN Ting-zhao |
| Institution: | 1. School of Computer Science & Technology, China University of Mining &Technology, Xuzhou 221116;2. UGS college, Yancheng Institute of Technology, Yancheng 224003;3. Network Center, Nanjing University of Information Science & Technology, Nanjing 210044 |
| Abstract: | Two basic schemes of cache coherency maintenance and the effectiveness of each were studied by comparison for a mobile database, and the effectiveness when they were implemented together was also analyzed. The results show that schemes can to a certain extent improve the performance. They can be combined in tailored ways, and can improve the hit and throughput to get performance improvement. |
| Keywords: | mobile database caching coherency discrete markov model peer coverage area(PCA) |
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