procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
 0  1  40848  64592  10984  58980   76   25    58    59    1     2 39  6 45 10
 0  0  40848  44488  11016  58976    0    0     1    31 1016    27 14  6 79  1
 0  0  40848  45376  11056  58992    0    0     2    63 1050    45 50 13 36  1
 0  0  40848  44096  11108  58996    0    0     2    88 1023    34 43 13 43  1
 1  0  40848  61512  11140  58992    0    0     0    30 1013    28 17  7 75  0
 0  0  40848  45664  11164  59000    0    0     1    19 1014    27 12  5 82  0
 0  0  40848  45104  11216  59004    0    0     1    47 1022    39 33 12 54  0