Scheduling real-time transactions with disk resident data
VLDB '89 Proceedings of the 15th international conference on Very large data bases
Distributed and Parallel Databases - Special issue: Research topics in distributed and parallel databases
An overview of real-time database systems
Advances in real-time systems
Implementation of a real-time database system
Information Systems - Special issue on real-time database systems
The PROMPT Real-Time Commit Protocol
IEEE Transactions on Parallel and Distributed Systems
Experimental Evaluation of Real-Time Optimistic Concurrency Control Schemes
VLDB '91 Proceedings of the 17th International Conference on Very Large Data Bases
Parallelism in a Main-Memory DBMS: The Performance of PRISMA/DB
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
Dynamic Transaction Scheduling and Reallocation in Overloaded Real-Time Database Systems
RTCSA '98 Proceedings of the 5th International Conference on Real-Time Computing Systems and Applications
An Admission Control Paradigm for Real-Time Databases
An Admission Control Paradigm for Real-Time Databases
Misconceptions about real-time databases
Misconceptions about real-time databases
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The correctness of real-time database systems depends on both the data consistency and the timeliness of the results. We present a very comprehensive study which demonstrates the effect of using various priority assignment and concurrency control protocols with a variety of underlying system configurations, including use of multiple disks, CPUs, and buffer sizes. The study identifies various bottlenecks and solutions under varying system loads and transaction parameters. Both preemptive and non-preemptive protocols are studied under realistic assumptions. Finally, a performance comparison of such a system operating under deadlock and no-deadlock conditions provides insight into the potential waste of resources when concurrency is restricted.