ZwoHash implements a very fast hash algorithm optimized for the use in hash tables. It has low per-hash overhead, which is important when hashing small keys. It is non-cryptographic and deterministic and as such not suited for inserting untrusted user-provided input into hash tables, unless other denial of service countermeasures are taken. As such it covers the same use cases as rustc’s FxHash.
See the GitHub project for more information.