Evaluation of concurrency control strategies for mixed soft real-time database systems

Previous research in real-time concurrency control mainly focuses on the schedulability guarantee of hard real-time transactions and the reducing of the miss rate of soft real-time transactions. Although many new database applications have significant response time requirements, not much work has been done in the joint scheduling of traditional non-real-time transactions and soft real-time transactions. In this paper, we study the concurrency control problems in mixed soft real-time database systems (MSRTDBS), in which both non-real-time and soft real-time transactions exist simultaneously. The objectives are to identify the cost and the performance tradeoff in the design of cost-effective and practical real-time concurrency control protocols, and to evaluate their performance under different real-time and non-real-time supports. In particular, we are interested in studying the impacts of different scheduling approaches for soft real-time transactions on the performance of non-real-ti...

• Type: Journal
• Year: 2002
• Where: IS
• Authors: Kam-yiu Lam, Tei-Wei Kuo, Ben Kao, Tony S. H. Lee, Reynold Cheng
• Keywords: Artificial Intelligence, IS 2002, Real-time, Real-time Transactions, Soft Real-time Transactions