Benchmarks

ML ranking workload: 1000 documents × 10 float32 columns, random keys, 10M row dataset.

Approach	Latency	95% CI	Throughput
Murr (HTTP + Arrow IPC)	104 µs	[103—104 µs]	9.63 Mkeys/s
Murr (Flight gRPC)	105 µs	[104—105 µs]	9.53 Mkeys/s
Redis MGET (feature blobs)	263 µs	[262—264 µs]	3.80 Mkeys/s
Redis Feast (HSET per row)	3.80 ms	[3.76—3.89 ms]	263 Kkeys/s

~2.5x faster than the best Redis layout, ~36x faster than Feast-style storage. Last-byte latency measured.

Methodology details