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Analysis of concurrency control protocols for real-time database systems

机译：实时数据库系统的并发控制协议分析

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This paper provides an approximate analytic solution method for evaluating the performance of concurrency control protocols developed for real-time database systems (RTDBSs). Transactions processed in a RTDBS are associated with timing constraints typically in the form of deadlines. The primary consideration in developing a RTDBS concurrency control protocol is the fact that satisfaction of the timing constraints of transactions is as important as maintaining the consistency of the underlying database. The proposed solution method provides the evaluation of the performance of concurrency control protocols in terms of the satisfaction rate of timing constraints. As a case study, a RTDBS concurrency control protocol, called High Priority, is analyzed using the proposed method. The accuracy of the performance results obtained is ascertained via simulation. The solution method is also used to investigate the real-time performance benefits of the High Priority over the ordinary Two-Phase Locking. (C) 1998 Elsevier Science Inc. All rights reserved. [References: 30]
机译：本文为评估为实时数据库系统（RTDBS）开发的并发控制协议的性能提供了一种近似的解析解决方案方法。在RTDBS中处理的事务通常以截止日期的形式与时序约束相关联。开发RTDBS并发控制协议的主要考虑因素是，满足事务的时序约束与维护基础数据库的一致性一样重要。所提出的解决方案方法根据时序约束的满足率对并发控制协议的性能进行了评估。作为案例研究，使用提出的方法分析了称为高优先级的RTDBS并发控制协议。通过仿真确定获得的性能结果的准确性。该解决方案方法还用于研究“高优先级”相对于普通两相锁定的实时性能优势。 （C）1998 Elsevier Science Inc.保留所有权利。 [参考：30]

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