The Hidden Cost of Software Libraries

Turns out the Rust version with clap is 50x SLOWER! 54.41 to be exact. ¹

Rust usually runs close to C speeds for equivalent implementations, so the speed difference is likely all overhead from the library.

50x hit to performance. Just so you can have some magic macros for your command line interface.

TIL, clap will slow down the startup times. But it's just call only "once" while parsing aruments.

Sort of balance between usablitiy and extre performace?