Boost 1.81 will have boost::unordered_flat_map...

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  1. unordered

    Boost.org unordered module

    We do have other benchmarks where we test the default hash function for strings, which differs between Boost and Abseil. (We also test strings using the same hash function, FNV-1a, for a more level playing field.)

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  3. You can find some benchmarks here

  4. parallel-hashmap

    A family of header-only, very fast and memory-friendly hashmap and btree containers.

    I do this as well in my phmap and gtl implementations. It makes the tables look worse in benchmarks like the above, but prevents really bad surprises occasionally.

  5. gtl

    Greg's Template Library of useful classes.

    I do this as well in my phmap and gtl implementations. It makes the tables look worse in benchmarks like the above, but prevents really bad surprises occasionally.

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