[root@bd root]# vmstat 10
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
 4  0  25412 250160  91736 2170944    0    1     3     3    4     3  5  3  3  0
 7  0  25412 247160  91736 2171024    0    0     0   116  588  4483 65  4 31  0
 3  0  25412 235456  91752 2171132    0    0     0   129  491  3670 70  4 26  0
 5  0  25412 233696  91760 2171216    0    0     0   152  530  4768 61  4 34  0
 5  0  25412 233248  91768 2171232    0    0     0   183  624  5379 59  5 36  0
 9  0  25412 195332  91788 2171304    0    0     0   127  541  4811 58  5 37  0