procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 0  0  17684  53360  45180 1234716    0    0     9    15    6    7  3  0 97  0
 1  0  17684  37164  45172 1211468    0    0     1    42  396  868  9  1 89  0
