[root@bloo ~]# vmstat -S M 3
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
 0  1      0     52      0   1744    0    0    35    31    5    21  4  5 87  4
 1  1      0     50      0   1748    0    0 31149 31561  500  9329 21 49  1 30
 1  0      0     51      0   1749    0    0 31951 31441  512  9849 24 54  1 21
 1  1      0     51      0   1751    0    0 27504 28761  507  8635 20 46  3 31
 1  0      0     51      0   1752    0    0 28832 28724  560  9069 20 50 10 20
14  2      0     52      0   1739    0    0 24873 24678  615  9262 26 54  1 19
11  1      0     51      0   1741    0    0 25031 23301  752  9189 35 65  0  0
14  2      0     50      0   1749    0    0 28596 30079  674  8985 43 57  0  0
 1  0      0     50      0   1757    0    0 27316 26005  694  9092 31 55  1 13
14  0      0     52      0   1752    0    0 28316 27365  594  9511 39 58  0  4
 0  1      0     52      0   1755    0    0 31957 32859  513  9491 23 52  0 25
 0  1      0     52      0   1763    0    0 31021 31502  482  9124 25 50  5 21
 0  1      0     52      0   1764    0    0 31360 31498  472  9344 23 48  4 25
 1  1      0     51      0   1767    0    0 29372 28756  448  8686 21 46 11 22