> If you have 1e4 machines and run a global video distribution network it might be worth an engineer's salary to look into it. Sure, and that would be the 0.1%

> If you have 1e4 machines and run a global video distribution network it might be worth an engineer's salary to look into it. Sure, and that would be the 0.1% of the time where it make sense. > if you're implementing a feature in the standard library of a widely used language I would contend that unless your library is very opinionated on exactly how data will be accessed, you can't possibly optimize cache access in a way that makes sense for every user.