Show HN: Key/Value Memory Cache

Category: database

Tags: key-value-cache, c, memcached-alternative, raft, lock-free

Score: 5.5/10 (Innovation: 5, Technical: 8, Documentation: 4, Utility: 5)

Umem-cache is a user-space key-value cache written in C, claiming higher hit rate and lower latency than Memcached and Redis in benchmarks. It features strong consistency, anti-dogpiling, lock-free multithreading, TLS, and a Raft-based cluster mode, with a custom binary protocol.

Target audience: backend developers, devops engineers, infrastructure engineers

Repository: https://github.com/imchuncai/umem-cache · C · GPL-2.0 · 6 stars

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