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I built dalahash, a small in-memory key-value server for Linux.

Design highlights: - worker thread per CPU (pinned) and RX/TX queue - one io_uring instance per worker - SO_REUSEPORT listener sharding - lock-free shared KV store - Redis and Memcached protocols (small subset)

Quick benchmark using memtier_benchmark: - ~3.9M ops/sec - 230 µs average client latency - 823 µs p99.99 client latency - ~18.8M ops/sec with pipelining

About 90% of the code was written using AI coding agents. I mainly focused on the architecture and reviewed the generated code.

Details: https://github.com/joakimthun/dalahash

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Show HN: Dalahash – a io_uring KV server (~3.9M ops/SEC, mostly written by AI)