procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 8  0 1987020 1418168 1633964 35363256    0    0    31   201    1    1 12  2 86  0  0
 5  0 1987020 1446196 1633964 35344312    0    0     0   112 14942 51159 40  3 57  0  0
 6  0 1987020 1434224 1633964 35341352    0    0     4  1704 16125 21166 34  1 65  0  0
 6  0 1987020 1459840 1633964 35338636    0    0     0     8 16382 20180 35  2 63  0  0
 5  0 1987020 1436008 1633964 35338540    0    0     0   904 16908 26057 35  1 63  0  0