| 基于优先权顶的实时并发控制协议 |
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| 引用本文： | 韩启龙,郝忠孝.基于优先权顶的实时并发控制协议[J].计算机工程与应用,2005,41(3):14-17,39. |
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| 作者姓名： | 韩启龙 郝忠孝 |
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| 作者单位： | 哈尔滨工业大学计算机科学与技术系,哈尔滨,150001;哈尔滨工业大学计算机科学与技术系,哈尔滨,150001;哈尔滨理工大学计算机系,哈尔滨,150080;齐齐哈尔大学计算机系,齐齐哈尔,161006 |
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| 基金项目： | 黑龙江省自然科学基金项目(编号:F00-06)资助 |
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| 摘 要： | 为了提高实时数据库系统的事务并发度,论文通过对已有的并发控制协议及实时事务冲突关系进行详细的分析,利用优先权顶的方法解决了事务间的冲突问题,提出了基于优先权顶的实时事务并发控制协议—PCCR协议,该协议能有效减少事务的重启率,使事务的并发性得到改善,同时能保证事务调度的可串行性,最终提高了系统的性能。
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| 关 键 词： | 实时数据库 并发控制 优先权顶 |
| 文章编号： | 1002-8331-(2005)03-0014-04 |
A Real-time Concurrency Control Protocol Based on Priority Ceiling |
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| Han Qilong,HAO Zhongxiao.A Real-time Concurrency Control Protocol Based on Priority Ceiling[J].Computer Engineering and Applications,2005,41(3):14-17,39. |
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| Authors: | Han Qilong HAO Zhongxiao |
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| Affiliation: | Han Qilong 1 Hao Zhongxiao 1,2,31 |
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| Abstract: | For improving the concurrency performance of real-time transactions,after detailed analysing about traditional concurrency control protocol and conflicts relations among real-time transactions,a concurrency control protocol is proposed based on priority ceiling in this paper,which enhances the concurrency character of real-time databases,ensures the serialization of real-time transactions and improves the performance of systems. |
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| Keywords: | real-time database concurrency control priority ceiling |
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