The comparison is against zlib-ng, not the OG zlib. So this is still very impressive. I suspect the results won't be quite as good on Aarch64 or other archite

The comparison is against zlib-ng, not the OG zlib. So this is still very impressive. I suspect the results won't be quite as good on Aarch64 or other architectures though. zlib-ng has a pretty wide range of hand-optimized intrinsics whereas zlib-rs seems to only really have x86_64.