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 3078356   2068 407492    0    0    15     2   34   27  0  0 100  0  0
 0  0      0 3078048   2068 407912    0    0    92    20 1724 1374  3  5 93  0  0
 0  0      0 3078304   2068 407872    0    0     0     0  245  171  0  0 99  0  0
 0  0      0 3078320   2068 407868    0    0     0     0  160  109  0  0 100  0  0
 0  0      0 3078700   2068 407864    0    0     0     0  133  100  0  0 100  0  0