The post is very light on details about the measurements, and only compares to libc++'s std::unordered_{map,set} (no version number provided). There is no menti

The post is very light on details about the measurements, and only compares to libc++'s std::unordered_{map,set} (no version number provided). There is no mention of space usage. It's well known that std::unordered_map is slow (see panic's comment). Some more worthy opponents would be Google's dense_hash_map [1] or sparsepp [2] [1] https://github.com/sparsehash/sparsehash https://github.com/sparsehash/sparsehash [2] https://github.com/greg7mdp/sparsepp https://github.com/greg7mdp/sparsepp