[fizx]

It's intentionally using the naive 2^N solution to stress test lots of tiny function calls.

[dhruvdh]

There is no way it will take a whole second regardless. Even when compiled in debug mode, it takes about 100 ms.

Try it here, I had Bing AI write it out - https://play.rust-lang.org/?version=stable&mode=release&edit...

[estebank]

OP isn't talking about the performance of Rust code to calculate fib(35), but rather the performance of a Rust implementation vs a Zig implementation of an interpreted language executing code to calculate fib(35). They are saying that the Rust VM they wrote is slower than the Zig VM they wrote.

[munificent]

And, in particular, an interpreted dynamically typed language.

[jeffdn]

From a book that was a real joy to read and take one’s first steps into the magical world of compilers —- thank you for writing it!

[munificent]

You're welcome! I'm glad you liked it.