On Mon, 28 Aug 2017, Peter Zijlstra wrote: > Well, ideally something like this would start the system with all the > 'crap' threads in !root cgroup. But that means cgroupfs needs to be > populated with at least two directories on boot. And current cgroup > cruft doesn't expect that.
Maybe an affinity mask for bootup will take care of that? I once wrote an init wrapper that restricted the number of cpus for the threads that init spawns but we can probably do much better.
