Based on the comment in the source, the hash table doesn't handle hash collisions. And furthermore, I don't see the code which benchmarks this versus other hash

Based on the comment in the source, the hash table doesn't handle hash collisions. And furthermore, I don't see the code which benchmarks this versus other hash tables, just the claim that it is 2-3x faster. Specifically, comparisons for different tables sizes using the same hash function would be good. The API this presents is not really inspiring either.