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Just out of curiosity, let me mention there are faster alternatives to xxh3 or algos with about the same speed but jaw-droppingly simpler. See https://github.com/rurban/smhasher/ .
Namely fastest (for both bulk & short inputs) seems to be wyhash and simpliest from the fastest ones mx3 (btw. I feel mx3 could still have some space for speed optimization as I suspect some false dependencies between instructions in the pipeline... - maybe even good old manual loop unrolling could make a difference, IDK).
But maybe xxh3 is better in some ways which I don't see but would like to. I can imagine something related to DBs but I don't know what exactly 😉.
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