On Being Optimistic about Real-Time Constraints

Summary: Re-evaluates optimistic vs. locking concurrency control in real-time DBs, showing that policy for missed deadlines (deadline‑drop), knowledge of transaction resource needs, and resource availability critically alter relative performance. Demonstrates that under deadline‑discard policies optimistic CC outperforms locking across a wide range of utilizations and argues why optimistic methods align well with RT scheduling semantics. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID: 912
Venue: PODS
Year: 1990
Pagerank: 6.5771215e-05
Overall Rank: 3,972 | 72.37%
DOI: -

Incoming Non-self Citations Over Time

Authors

Incoming Citations (Sorted by Pagerank)

Showing 7 of 7 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
2,043	Priority-Hints: An Algorithm for Priority-Based Buffer Management	1990	VLDB	9.695642e-05
4,400	Experimental Evaluation of Real-Time Optimistic Concurrency Control Schemes	1991	VLDB	6.221248e-05
4,923	Using Delayed Commitment in Locking Protocols for Real-Time Databases	1992	SIGMOD	5.8232144e-05
5,339	Real-Time Transaction Scheduling: A Cost Conscious Approach	1993	SIGMOD	5.5624696e-05
7,068	Managing Memory For Real-Time Queries	1994	SIGMOD	4.8438369e-05
7,580	Polaris: Enabling Transaction Priority in Optimistic Concurrency Control	2023	SIGMOD	4.7058993e-05
12,809	Value-cognizant Speculative Concurrency Control	1995	VLDB	4.1945683e-05

Outgoing Citations (Sorted by Pagerank)

Showing 5 of 5 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
190	Models for Studying Concurrency Control Performance: Alternatives and Implications	1985	SIGMOD	0.0003579699
937	Scheduling Real-time Transactions: a Performance Evaluation	1988	VLDB	0.00015207578
2,343	Scheduling Real-Time Transactions with Disk Resident Data	1989	VLDB	9.0012398e-05
2,858	Priority in DBMS Resource Scheduling	1989	VLDB	8.0008765e-05
3,031	Distributed Concurrency Control Performance: A Study of Algorithms, Distribution, and Replication	1988	VLDB	7.6775693e-05

Semantically Similar Papers

Overall Rank	Paper	Year	Venue	Pagerank
190	Models for Studying Concurrency Control Performance: Alternatives and Implications	1985	SIGMOD	0.0003579699
4,923	Using Delayed Commitment in Locking Protocols for Real-Time Databases	1992	SIGMOD	5.8232144e-05
3,788	Opportunities for Optimism in Contended Main-Memory Multicore Transactions	2020	VLDB	6.7656267e-05
347	An Optimality Theory of Concurrency Control for Databases	1979	SIGMOD	0.00026610677
12,765	Secure Transaction Processing in Firm Real-Time Database Systems	1997	SIGMOD	4.1945683e-05
7,593	Parallelism and Concurrency Control Performance in Distributed Database Machines	1989	SIGMOD	4.7019508e-05
2,950	The Performance Of Concurrency Control Algorithms For Database Management Systems	1984	VLDB	7.8329866e-05
2,088	Empirical Comparison of Database Concurrency Control Schemes	1983	VLDB	9.570953e-05
2,207	Efficient Optimistic Concurrency Control Using Loosely Synchronized Clocks	1995	SIGMOD	9.2905883e-05
4,400	Experimental Evaluation of Real-Time Optimistic Concurrency Control Schemes	1991	VLDB	6.221248e-05