You get a fun reminder of that if you run MWC's Coherence in a vm today. Coherence's idle loop/task does not issue HLT, so you can happily see the CPU core the

You get a fun reminder of that if you run MWC's Coherence in a vm today. Coherence's idle loop/task does not issue HLT, so you can happily see the CPU core the vm is running on burning away for no good reason.