My understanding of that PR is it relates to how the Go compiler does code generation. Rust takes a different approach and is about to ship `async / await` whic

My understanding of that PR is it relates to how the Go compiler does code generation. Rust takes a different approach and is about to ship `async / await` which is a different strategy. Preemption is out of scope for Tokio as we are focusing on a runtime to power Rust async functions. So, for the foreseeable, Tokio will using "cooperative preemption" via `await` points.