top用時久，我推薦使用mpstat
top -n1 | head -n2 Mem: 222328K used, 282096K free, 6216K shrd, 13760K buff, 27972K cached CPU: 18% usr 40% sys 0% nic 39% idle 0% io 0% irq 1% sirq
mpstat 22:35:32 CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle 22:35:32 all 0.79 0.00 1.55 0.01 0.00 0.30 0.00 0.00 97.36