No tool named which units or processes used CPU outside containers during
the novox overload (issue 739). cpu_top reads each cgroup's cpu.stat (no
root needed), ranks units or containers busiest first, and says the
machine's CPU in use and the busy time no unit accounts for.
mesh/merge-gate pass: builds new: modules/disk-load, sent nowhere; no bus step; every machine composes with the change as it did without (4 of 4 compose)
jochen