procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 1  1      0 128812  19620  82484    0    0   117  7817  355  708 24 50 22  4
 0  1      0 128804  19620  82484    0    0     0 21120  330  673  0  1  0 99
 0  1      0 128804  19620  82484    0    0     0 21184  341  683  0  4  0 96
 0  1      0 128804  19620  82484    0    0     0 21120  335  675  0  4  0 96
 0  1      0 128804  19620  82484    0    0     0 21124  340  682  0  3  0 97
 0  1      0 128744  19620  82484    0    0     0 21120  341  678  0  2  0 98
 1  1      0 128744  19628  82484    0    0     0 20980  339  687  0  2  0 98
 1  1      0 128744  19628  82484    0    0     0 21120  346  675  0  3  0 97
 1  1      0 128744  19628  82484    0    0     0 21120  345  679  0  4  0 96
 0  1      0 128744  19628  82484    0    0     0 21128  337  682  0  3  0 97