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WiscKey

WiscKey We present WiscKey, a persistent LSM-tree-based key-value store with a performance-oriented data layout that separates keys from values to minimize I/O amplification. The design of WiscKey is highly SSD optimized, leveraging both the sequential and random performance characteristics of the device. We demonstrate the advantages of WiscKey with both microbenchmarks and YCSB workloads. Microbenchmark results show that WiscKey is 2.5 to 111 faster than LevelDB for loading a database (with significantly better tail latencies) and 1.6 to 14 faster for random lookups. WiscKey is faster than both LevelDB and RocksDB in all six YCSB workloads. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Transactions on Storage (TOS) Association for Computing Machinery

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Publisher
Association for Computing Machinery
Copyright
Copyright © 2017 ACM
ISSN
1553-3077
eISSN
1553-3093
DOI
10.1145/3033273
Publisher site
See Article on Publisher Site

Abstract

We present WiscKey, a persistent LSM-tree-based key-value store with a performance-oriented data layout that separates keys from values to minimize I/O amplification. The design of WiscKey is highly SSD optimized, leveraging both the sequential and random performance characteristics of the device. We demonstrate the advantages of WiscKey with both microbenchmarks and YCSB workloads. Microbenchmark results show that WiscKey is 2.5 to 111 faster than LevelDB for loading a database (with significantly better tail latencies) and 1.6 to 14 faster for random lookups. WiscKey is faster than both LevelDB and RocksDB in all six YCSB workloads.

Journal

ACM Transactions on Storage (TOS)Association for Computing Machinery

Published: Mar 2, 2017

Keywords: LevelDB

References