Plush: A Write-Optimized Persistent Log-Structured Hash-Table

Summary: Plush is a write-optimized persistent log-structured hash table supporting variable-length records with minimal PMem read/write amplification and low DRAM use. It cuts media write amplification by 80%, delivering up to 2.44× faster inserts than PMem hash tables. (summarized by gpt-5.6-luna on Jul 24 2026)

Paper ID: 12961
Venue: VLDB
Year: 2022
Pagerank: 5.9817424e-05
Overall Rank: 6,086 | 58.25%
DOI: 10.14778/3551793.3551839

Incoming Non-self Citations Over Time

Authors

1. Lukas Vogel (Technical University of Munich)
2. Alexander van Renen (Friedrich-Alexander University Erlangen-Nuremberg)
3. Satoshi Imamura (Fujitsu Laboratories)
4. Jana Giceva (Technical University of Munich)
5. Thomas Neumann (Technical University of Munich)
6. Alfons Kemper (Technical University of Munich)

BibTeX Citation

@article{vogel_vldb22,
        title = {{Plush: A Write-Optimized Persistent Log-Structured Hash-Table}},
        author = {Vogel, Lukas and van Renen, Alexander and Imamura, Satoshi and Giceva, Jana and Neumann, Thomas and Kemper, Alfons},
        journal = {PVLDB},
        series = {{VLDB} '22},
        volume = {15},
        number = {11},
        pages = {2895--2907},
        doi = {10.14778/3551793.3551839},
        url = {https://doi.org/10.14778/3551793.3551839},
        year = {2022}
}

Incoming Citations (Sorted by Pagerank)

Showing 7 of 7 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
6,878	SepHash: A Write-Optimized Hash Index On Disaggregated Memory via Separate Segment Structure	2024	VLDB	5.7480267e-05
8,474	OptiQL: Robust Optimistic Locking for Memory-Optimized Indexes	2023	SIGMOD	5.4172941e-05
8,904	A Design Space Exploration and Evaluation for Main-Memory Hash Joins in Storage Class Memory	2023	VLDB	5.3483178e-05
9,376	H-Rocks: CPU-GPU accelerated Heterogeneous RocksDB on Persistent Memory	2025	SIGMOD	5.2755515e-05
9,467	Sphinx: A Succinct Perfect Hash Index for x86	2025	VLDB	5.2634238e-05
10,568	Operation-Aware Hybrid Locking for Modern In-Memory Indexes	2026	VLDB	5.093636e-05
11,357	Data Pipes: Declarative Control over Data Movement	2023	CIDR	5.093636e-05

Outgoing Citations (Sorted by Pagerank)

Showing 20 of 20 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
105	Quickly Generating Billion-Record Synthetic Databases	1994	SIGMOD	0.00033877899
275	bLSM: A General Purpose Log Structured Merge Tree	2012	SIGMOD	0.00022630189
491	FPTree: A Hybrid SCM-DRAM Persistent and Concurrent B-Tree for Storage Class Memory	2016	SIGMOD	0.00017575163
614	Faster: A Concurrent Key-Value Store with In-Place Updates	2018	SIGMOD	0.00015720975
621	Persistent B+-Trees in Non-Volatile Main Memory	2015	VLDB	0.00015695264
948	BzTree: A High-Performance Latch-free Range Index for Non-Volatile Memory	2018	VLDB	0.0001303916
1,258	Managing Non-Volatile Memory in Database Systems	2018	SIGMOD	0.00011438197
1,368	Dash: Scalable Hashing on Persistent Memory	2020	VLDB	0.00011003184
1,823	LB+-Trees: Optimizing Persistent Index Performance on 3DXPoint Memory	2020	VLDB	9.6739945e-05
2,246	DPTree: Differential Indexing for Persistent Memory	2020	VLDB	8.8734154e-05
2,471	Viper: An Efficient Hybrid PMem-DRAM Key-Value Store	2021	VLDB	8.5329393e-05
2,707	Evaluating Persistent Memory Range Indexes	2020	VLDB	8.2279594e-05
3,526	Understanding the Idiosyncrasies of Real Persistent Memory	2021	VLDB	7.3429293e-05
3,647	Maximizing Persistent Memory Bandwidth Utilization for OLAP Workloads	2021	SIGMOD	7.2271935e-05
4,110	Spitfire: A Three-Tier Buffer Manager for Volatile and Non-Volatile Memory	2021	SIGMOD	6.8948348e-05
4,682	Persistent Memory Hash Indexes: An Experimental Evaluation	2021	VLDB	6.5651164e-05
4,763	Rethinking Logging, Checkpoints, and Recovery for High-Performance Storage Engines	2020	SIGMOD	6.519206e-05
5,683	SSDs Striking Back: The Storage Jungle and Its Implications on Persistent Indexes	2022	CIDR	6.1232842e-05
6,679	Revisiting the Design of LSM-tree Based OLTP Storage Engine with Persistent Memory	2021	VLDB	5.8050516e-05
10,004	A four-dimensional Analysis of Partitioned Approximate Filters	2021	VLDB	5.1810297e-05

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#	Overall Rank	Paper	Year	Venue
1	2,707	Evaluating Persistent Memory Range Indexes	2020	VLDB
2	3,526	Understanding the Idiosyncrasies of Real Persistent Memory	2021	VLDB
3	6,733	Evaluating Persistent Memory Range Indexes: Part Two	2022	VLDB
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5	2,246	DPTree: Differential Indexing for Persistent Memory	2020	VLDB
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7	6,397	Halo: A Hybrid PMem-DRAM Persistent Hash Index with Fast Recovery	2022	SIGMOD
8	8,082	Pea Hash: A Performant Extendible Adaptive Hashing Index	2023	SIGMOD
9	4,682	Persistent Memory Hash Indexes: An Experimental Evaluation	2021	VLDB
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