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A comment on What's a CPU to do when it has nothing to do?. Parent comment

Re:What's a CPU to do when it has nothing to do? by chaosite on Thursday October 11, 2018 @05:14AM (#18191969)
So the zero page process runs when one core is busy but the rest are free?
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Re:What's a CPU to do when it has nothing to do? by klodolph on Thursday October 11, 2018 @09:29AM (#18193337)
It runs when the there are no higher-priority processes to schedule on a particular core. IDLE processes are higher priority, so as long as an IDLE process can be scheduled, the zero page process won't run.
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