Comment by johnfn

> First, let me assure you - yes, we (as in, the Rust Project) absolutely do care about the performance of our beloved compiler, and we put in a lot of effort to improve it.

I'm probably being ungrateful here, but here goes anyway. Yes, Rust cares about performance of the compiler, but it would likely be more accurate to say that compiler performance is, like, 15th on the list of things they care about, and they'll happily trade off slower compile times for one of the other things.

I find posts about Rust like this one, where they say "ah, of course we care about perf, look, we got the compile times on a somewhat nontrivial project to go from 1m15s to 1m09s" somewhat underwhelming - I think they miss the point. For me, I basically only care if compile times are virtually instantaneous. e.g. Vite scales to a million lines and can hot-swap my code changes in instantaneously. This is where the productivity benefits come in.

Don't just trust me on it. Remember this post[1]?

> "I feels like some people realize how much more polish could their games have if their compile times were 0.5s instead of 30s. Things like GUI are inherently tweak-y, and anyone but users of godot-rust are going to be at the mercy of restarting their game multiple times in order to make things look good. "

[1]: https://loglog.games/blog/leaving-rust-gamedev/#compile-time...