procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 0  0     56  60552   1836  21008    0    0   115   419  316   51  0  3 96  1
 1  0     56  60216   1836  21328    0    0     0     0  695  286  0  3 97  0
 0  0     56  59908   1836  21648    0    0     0     0  744  318  0  1 99  0
 0  0     56  59600   1836  21936    0    0     0     0  685  251  0  2 98  0
 0  0     56  59376   1836  22160    0    0     0     0  596  219  0  2 98  0
 0  0     56  59040   1844  22472    0    0     0    32  742  310  0  3 97  0
 0  0     56  59244   1844  22608    0    0     0     0  458  122  0  0 100  0
 0  0     56  58936   1844  22960    0    0     0     0  768  361  0  1 99  0
 0  0     56  58740   1844  23152    0    0     0     0  557  181  0  0 100  0
 0  0     56  58488   1844  23408    0    0     0     0  629  245  0  3 97  0