Anecdote time: I did a test like this with a small hobby project of mine (c++). I ported it to rust and saw roughly a 25% speed increase because of some refacto

Anecdote time: I did a test like this with a small hobby project of mine (c++). I ported it to rust and saw roughly a 25% speed increase because of some refactorings I was meaning to do for a long time. I then ported the rust code back to c++ and saw another 15% gain in performance. Backporting the changes to rust again yielded no significant difference. I am no rust programmer though, and I don't think the rust code was very idiomatic. But then again I apparently write c++ like a common lisp programmer...