vmstat 2
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 1  0      0 129965576  12556  39608    0    0    81     1  408  782  1  1 97  2
 0  0      0 129965552  12556  39632    0    0     0     0 16551 32802  0  0 100  0
 0  0      0 129965632  12556  39632    0    0     0     0 16533 32809  0  0 100  0
 2  0      0 127859992  12556  39632    0    0    40     0 16439 32671  0  1 99  0
 1  0      0 121543616  12556  39712    0    0     0     4 16842 32828  0  4 96  0
 1  0      0 115227888  12564  39704    0    0     0    10 16842 32774  0  4 96  0
 4 157      0 107141264  12564  39712    0    0    38 93220 19812 34620  9  7 76  8
 4 132      0 99558056  12564  39712    0    0    14 333486 23417 38402  7  6 37 49
 3 134      0 93181904  12564  39712    0    0     0  2688 17863 33844  0  4 43 52
 3 134      0 86859600  12564  39712    0    0     0     0 17832 33800  0  4 45 51
 2 134      0 80061888  12564  39712    0    0     0     0 17615 33609  0  4 44 52
 0 134      0 76332352  12564  39712    0    0     0     0 18305 34343  0  3 45 52
 0 134      0 76331696  12564  39712    0    0     0     0 19424 34878  0  1 45 54
 2 134      0 76331920  12564  39712    0    0     0     0 19305 34779  0  1 45 54
 0 134      0 76332408  12564  39712    0    0     0     0 19191 34821  0  0 46 54
 3 134      0 86835888  12564  39712    0    0     0     0 19287 34667  0  1 45 53