In Go, even a pure compute loop can be forced to yield. This could be cool in Roc (one day).
Go achieves this forced yielding by sending an OS signal (like SIGURG) directly to the executing thread. This interrupts the tight loop and triggers a signal handler that saves the machine's register state, adjusts the program counter, and cleanly switches contexts without relying on the compute loop to explicitly yield.
This interesting (and quite technical) blog post goes into more depth and explores how one might implement that in Rust:
https://ulfbissbort.github.io/exploring-go-scheduling-in-rust.html
Last updated: Nov 04 2026 at 18:54 UTC