You can read more about it at various points in these two blogs I've written: https://blog.burntsushi.net/ripgrep/ https://blog.burntsushi.net/ripgrep/ https:

You can read more about it at various points in these two blogs I've written: https://blog.burntsushi.net/ripgrep/ https://blog.burntsushi.net/ripgrep/ https://blog.burntsushi.net/regex-internals/ https://blog.burntsushi.net/regex-internals/ 64 bytes is decently long, but I'd still put my money on SIMD for "common" cases.