Wow.. So I was trying to #optimize some Rust code that would take six hours to run.
My goal was to get that down to 3.5 hours (something I'd achieved previously with lost code). Some tweaking got it down to 5 hours estimated runtime.
Then I thought to do:
"cargo build --release" instead of just "cargo build" for the first time.
And we're down to 3 minutes.... not 3.5 hours... 3 minutes.
Ok.. Good to know. Debug adds just a tiny bit of overhead on some code ;-).