You're only the second commenter on this thread to notice this. The benchmark compares fibers to threads and has little to do with Rust. You will see the same

You're only the second commenter on this thread to notice this. The benchmark compares fibers to threads and has little to do with Rust. You will see the same numbers for a fibers implementation in any natively compiled language like C or Java. The title is completely misleading, especially for most people who are not aware of this important distinction.