(USENIX ATC ’15) is sponsored by USENIX. NVMKV: A Scalable, Lightweight, FTL-aware Key-Value Store

†SanDisk ‡Florida International University Key-value stores are ubiquitous in high performance data-intensive, scale out, and NoSQL environments. Many KV stores use flash devices for meeting their per-formance needs. However, by using flash as a sim-ple block device, these KV stores are unable to fully leverage the powerful capabilities that exist within Flash Translation Layers (FTLs). NVMKV is a lightweight KV store that leverages native FTL capabilities such as sparse addressing, dynamic mapping, transactional per-sistence, and support for high-levels of lock free paral-lelism. Our evaluation of NVMKV demonstrates that it provides scalable, high-performance, and ACID compli-ant KV operations at close to raw device speeds.