I’ve just replaced MetroHash with CityHash and get 1000x (30ms instead of 30s) hashing speedup. It seems I somehow screwed MetroHash really bad. #cpp
Either way, I'd never heard of "mum hash", but now that I have, I'll add it to our benchmark and we can see how it actually performs under controlled conditions.
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I went ahead and benchmarked it. It is slower than us on all input sizes. It is also slower than other relatively fast hashes at small sizes, such as t1ha and xxhash3, although it may be higher quality than those, I don't know... more on that later :)
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You might be interested in reading http://fastcompression.blogspot.com/2019/03/presenting-xxh3.html … both t1ha2 and mumv2 are latency-optimized (vs throughput optimized) hashes. XXH3 hash is inspired by them.
End of conversation
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