Linux Openwrt CPU使用率

top用时久，我推荐使用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