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Ragnar {Groot Koerkamp}
curiouscoding.nl
did:plc:olhpu3lwhpafue3jjmhat4mj
FxHashSet::<u32>::contains throughput is wild!
- Up to 4x slowdown for negative queries due to probing.
- Positive queries are fast for small tables, but slow in RAM because they need 2 cache misses.
Lots of variance depending on the load factor, ie whether n is close to 87.5% of a power of 2.
2025-09-28T23:19:07.855Z