From: Prarit Bhargava on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2370#note_1319...
I admit when I introduced RHJOBS that I did look at the other ways nproc,
etc., were being used. As with all changes I was a bit nervous about breaking
existing behavior. IMO RHJOBS is the way to go. Use it everywhere and set
it once.