Put an Elephant into a Fridge: Optimizing Cache Efficiency for In-memory Key-value Stores

Summary: Cavast tackles CPU-cache bottlenecks in terabyte-scale in-memory KVSs without hardware changes, using software cache control, cache-aware layout/index redesign, and GC offloading. Memcached/Redis prototypes achieve up to 82.7% cache hits and 4.2× throughput. (summarized by gpt-5.6-luna on Jul 24 2026)

Paper ID: 12250
Venue: VLDB
Year: 2020
Pagerank: 6.180117e-05
Overall Rank: 5,542 | 61.98%
DOI: 10.14778/3397230.3397247

Incoming Non-self Citations Over Time

Authors

1. Kefei Wang (Louisiana State University)
2. Jian Liu (Louisiana State University)
3. Feng Chen (Louisiana State University)

BibTeX Citation

@article{wang_vldb20,
        title = {{Put an Elephant into a Fridge: Optimizing Cache Efficiency for In-memory Key-value Stores}},
        author = {Wang, Kefei and Liu, Jian and Chen, Feng},
        journal = {PVLDB},
        series = {{VLDB} '20},
        volume = {13},
        number = {9},
        pages = {1540--1554},
        doi = {10.14778/3397230.3397247},
        url = {https://doi.org/10.14778/3397230.3397247},
        year = {2020}
}

Incoming Citations (Sorted by Pagerank)

Showing 3 of 3 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
2,816	Cache-Craft: Managing Chunk-Caches for Efficient Retrieval-Augmented Generation	2025	SIGMOD	8.0959781e-05
7,263	Catalyst: Optimizing Cache Management for Large In-memory Key-value Systems	2023	VLDB	5.6611756e-05
11,616	Rearchitecting In-Memory Object Stores for Low Latency	2022	VLDB	5.093636e-05

Outgoing Citations (Sorted by Pagerank)

Showing 8 of 8 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
67	Making B+-Trees Cache Conscious in Main Memory	2000	SIGMOD	0.00038461275
278	FAST: Fast Architecture Sensitive Tree Search on Modern CPUs and GPUs	2010	SIGMOD	0.00022476841
967	FlashStore: High Throughput Persistent Key-Value Store	2010	VLDB	0.0001291715
1,677	SkimpyStash: RAM Space Skimpy Key-Value Store on Flash-based Storage	2011	SIGMOD	0.00010032149
2,457	BlueCache: A Scalable Distributed Flash-based Key-value Store	2017	VLDB	8.5515986e-05
2,498	Mega-KV: A Case for GPUs to Maximize the Throughput of In-Memory Key-Value Stores	2015	VLDB	8.5016595e-05
2,890	Interleaving with Coroutines: A Practical Approach for Robust Index Joins	2018	VLDB	7.9880033e-05
5,021	Online Deduplication for Databases	2017	SIGMOD	6.3982122e-05

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1	4,993	Key-Value Storage Engines	2020	SIGMOD
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4	4,888	Enabling Low Tail Latency on Multicore Key-Value Stores	2020	VLDB
5	7,821	Concurrent Log-Structured Memory for Many-Core Key-Value Stores	2018	VLDB
6	8,933	Caching at the Web Scale	2017	VLDB
7	2,498	Mega-KV: A Case for GPUs to Maximize the Throughput of In-Memory Key-Value Stores	2015	VLDB
8	10,341	Analysis and Evaluation of Using Microsecond-Latency Memory for In-Memory Indices and Caches in SSD-Based Key-Value Stores	2026	SIGMOD
9	2,457	BlueCache: A Scalable Distributed Flash-based Key-value Store	2017	VLDB
10	7,263	Catalyst: Optimizing Cache Management for Large In-memory Key-value Systems	2023	VLDB