I recommend checking out XXHash[0], FNV is simple but not really optimized and relatively low quality (often still good enough). From the readme page: Hash Nam

I recommend checking out XXHash[0], FNV is simple but not really optimized and relatively low quality (often still good enough). From the readme page: Hash Name, Bandwidth, Small Velocity, Quality, Comment XXH3 (SSE2), 31.5 GB/s, 133.1, 10, FNV64, 1.2 GB/s, 62.7, 5, Poor avalanche properties [0]: https://github.com/Cyan4973/xxHash https://github.com/Cyan4973/xxHash Also ETag is exactly the kind of thing non-cryptographic hashes are meant for, but if you can't convince them Blake3 is a very fast modern cryptographic hash function.