QA output created by 1177
== checking non-derived metrics
    === sample.hordes status=0
    === sample.hordes.one status=0
    === disk.dev.read status=0
    === disk.dev status=0
    === kernel.percpu.cpu.wait status=0
    === kernel.percpu.cpu.wait.total status=0
== checking derived metrics and subtrees containing them
    === disk.dev status=0
    === disk.dev.await status=0

If failure, check 1177.full
