Anecdotal experience: we rewrote an image processing algorithm from numpy+scipy to pure rust and got a 50x speedup in release builds, without even spending any

Anecdotal experience: we rewrote an image processing algorithm from numpy+scipy to pure rust and got a 50x speedup in release builds, without even spending any effort optimizing the rust side. There are further improvements possible around memory allocation and cachelines, but 2 days for 50x improvement was sufficient to not make it worth investing additional effort. Edit: this was from a team who had _never_ touched Rust before.