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Plor: General Transactions with Predictable, Low Tail Latency

Summary: Plor: hybrid concurrency control with pessimistic locking and optimistic reads for in-memory transactions, targeting high-contention workloads. Conflict checks delayed to commit; older txs commit first by timestamp, yielding low tail latency and solid throughput. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
6331
Venue
SIGMOD
Year
2022
Pagerank
5.0115359e-05
Overall Rank
6,558 | 54.38%
DOI
10.1145/3514221.3517879

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Showing 15 of 15 cited papers.

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

Rank Cited Paper Year Venue Pagerank
87 Hekaton: SQL Server’s Memory-Optimized OLTP Engine 2013 SIGMOD 0.00052389723
122 Calvin: Fast Distributed Transactions for Partitioned Database Systems 2012 SIGMOD 0.00045316749
635 Staring into the Abyss: An Evaluation of Concurrency Control with One Thousand Cores 2015 VLDB 0.00018879031
763 FOEDUS: OLTP Engine for a Thousand Cores and NVRAM 2015 SIGMOD 0.00017025851
1,036 ERMIA: Fast Memory-Optimized Database System for Heterogeneous Workloads 2016 SIGMOD 0.0001452166
1,069 Cicada: Dependably Fast Multi-Core In-Memory Transactions 2017 SIGMOD 0.00014319266
1,692 Mostly-Optimistic Concurrency Control for Highly Contended Dynamic Workloads on a Thousand Cores 2017 VLDB 0.00010901611
1,845 Improving Optimistic Concurrency Control Through Transaction Batching and Operation Reordering 2019 VLDB 0.00010338323
1,961 TicToc: Time Traveling Optimistic Concurrency Control 2016 SIGMOD 9.9514005e-05
2,373 SLOG: Serializable, Low-latency, Geo-replicated Transactions 2019 VLDB 8.9476269e-05
2,601 What Are We Doing With Our Lives? Nobody Cares About Our Concurrency Control Research 2017 SIGMOD 8.468229e-05
3,749 BCC: Reducing False Aborts in Optimistic Concurrency Control with Low Cost for In-Memory Databases 2016 VLDB 6.7907876e-05
3,788 Opportunities for Optimism in Contended Main-Memory Multicore Transactions 2020 VLDB 6.7656267e-05
4,054 Scaling Multicore Databases via Constrained Parallel Execution 2016 SIGMOD 6.4919461e-05
4,845 Graph Analytics Through Fine-Grained Parallelism 2016 SIGMOD 5.8795333e-05
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