Comment 9 for bug 1577520

@Mark, on a related note, you mentioning adding an interface gave me the idea that we could add a 'process-control' (or something) interface that would allow, for example, htop to renice any process to any nice value as well as sending arbitrary signals to arbitrary processes. A powerful interface to be sure, but a useful one for a management snap. I've added a card to pursue this with the interfaces team.