mpstat

Per-CPU statistics

low risk

interactive breakdown — edit the command and press Explain
$ 
What it does

sysstat tool showing per-core utilisation.

Examples
mpstat -P ALL 1 5Per-core stats for 5 seconds · explain & risk-check →
Related
sar vmstat top
Open the full explainer →More in System & Processes

Reference text is hand-written and may be incomplete — check man mpstat for your version. Test destructive commands on a non-production system first.