Hopefully easy question about portage via git (from Github); didn't find anything in bugzilla.
Have been using it for a while and everything works, but the slow metadata cache updates are annoying, so I dug into the script call chain, ended up in egencache and for the life of me can't figure out why it only uses a single core, despite the fact that $(nproc) is passed as --jobs argument. Even calling it manually with --jobs=8 only uses a single core, regardless of python version (tried 2.7 and 3.5). Does this work for anyone, or is it a known bug/lack of implementation? Holger