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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
hbe21b807bd8c1df5
Venue
SIGMOD
Year
2022
Pagerank
5.8567613e-05
Overall Rank
6,183 | 58.45%
DOI
10.1145/3514221.3517879

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{chen_sigmod22,
        title = {{Plor: General Transactions with Predictable, Low Tail Latency}},
        author = {Chen, Youmin and Yu, Xiangyao and Koutris, Paraschos and Arpaci-Dusseau, Andrea C. and Arpaci-Dusseau, Remzi H. and Shu, Jiwu},
        series = {{SIGMOD} '22},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3514221.3517879},
        url = {https://dl.acm.org/doi/10.1145/3514221.3517879},
        year = {2022}
}

Incoming Citations (Sorted by Pagerank)

Showing 9 of 9 citing papers.

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Outgoing Citations (Sorted by Pagerank)

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
35 Hekaton: SQL Server’s Memory-Optimized OLTP Engine 2013 SIGMOD 0.00047996489
55 Calvin: Fast Distributed Transactions for Partitioned Database Systems 2012 SIGMOD 0.00040454492
444 Staring into the Abyss: An Evaluation of Concurrency Control with One Thousand Cores 2015 VLDB 0.0001817002
542 FOEDUS: OLTP Engine for a Thousand Cores and NVRAM 2015 SIGMOD 0.00016654017
635 ERMIA: Fast Memory-Optimized Database System for Heterogeneous Workloads 2016 SIGMOD 0.00015362118
786 Cicada: Dependably Fast Multi-Core In-Memory Transactions 2017 SIGMOD 0.00013983316
1,161 Mostly-Optimistic Concurrency Control for Highly Contended Dynamic Workloads on a Thousand Cores 2017 VLDB 0.0001176315
1,335 TicToc: Time Traveling Optimistic Concurrency Control 2016 SIGMOD 0.00010991964
1,352 Improving Optimistic Concurrency Control Through Transaction Batching and Operation Reordering 2019 VLDB 0.00010928386
1,704 SLOG: Serializable, Low-latency, Geo-replicated Transactions 2019 VLDB 9.8268213e-05
2,396 What Are We Doing With Our Lives? Nobody Cares About Our Concurrency Control Research 2017 SIGMOD 8.5255876e-05
3,064 Opportunities for Optimism in Contended Main-Memory Multicore Transactions 2020 VLDB 7.6883866e-05
3,262 Scaling Multicore Databases via Constrained Parallel Execution 2016 SIGMOD 7.4800686e-05
3,266 BCC: Reducing False Aborts in Optimistic Concurrency Control with Low Cost for In-Memory Databases 2016 VLDB 7.4749205e-05
4,375 Graph Analytics Through Fine-Grained Parallelism 2016 SIGMOD 6.6271654e-05
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