vmstat 1 5
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 0  0      0 13365224 185368 1156500    0    0   323    36  261  611  7  3 89  0  0
 0  0      0 13365372 185368 1156728    0    0     0     0  710 1306  2  1 97  0  0
 1  0      0 13365380 185368 1156728    0    0     0    48  660 2027  2  1 98  0  0
 0  0      0 13365380 185368 1156728    0    0     0     0  627 1164  1  1 98  0  0
 0  0      0 13365380 185368 1156728    0    0     0     0  670 1515  2  1 97  0  0
