Rewriting the GNU Coreutils in Rust

Who says those other processes are more urgent than your uutils process ? And what if there are a couple of other urgent single-threaded processes but you still have have your CPU cores available for the uutils process ?

Assigning priorities should be done at the system and kernel level, not at the process level. It's nice to have `-jN` style options with a "-j$(nproc)" default, but they remain a bit of a kludge. Instead we have nice, cgroups, etc. It'd be great if something like Apple's grand central dispatch became ubiquitous on Linux.