Hacker News Reader

There was a test with the 1BRC and it was shown that Rust was faster than Assembly (and likely C as well), meaning, a compiler will probably do a better job than a human optimizing code. How sure can someone be that this is indeed performant?

View on HN

OS performance comes from algorithms and data structures not from compiler optimizations.

Os performance depends upon the overhead imposed over workloads. Being that a compilation, a computation or a communication task is a different topic.

Exactly, and that is a thing for every single piece of software ever written. Doesn't make a difference whether it's an OS or not.

Reply on news.ycombinator.com