procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 1  0      0 6796972  22700 463748    0    0   138     7   63  191  2  1 94  3  0
 0  0      0 6796716  22708 463748    0    0     0    10   71  171  0  0 100  0  0
 0  0      0 6796220  22708 463748    0    0     0     0   89  218  0  0 99  0  0
 0  0      0 6797460  22724 463748    0    0     0    19  364  644  8  1 90  0  0
 0  0      0 6797460  22732 463744    0    0     0     8   71  173  0  0 100  0  0
 0  0      0 6791656  22756 463756    0    0     0    43  155  414  1  1 97  1  0
 0  0      0 6791656  22756 463756    0    0     0    25   74  162  0  0 100  0  0
 0  0      0 6789980  22756 463756    0    0     0     0   69  159  0  0 100  0  0
 1  0      0 6763800  22792 476716    0    0    50     0  411  900  9  1 89  1  0
 0  0      0 6788080  22848 464056    0    0     2    74  340  693 17  2 80  1  0