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The output of your command "$ vmstat 1 1" is:

procs -----------memory---------- ---swap-- -----io---- -system-- -------cpu-------
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st gu
 1  0 377580 605036 541588 22562644    0    0   118    83  775    0  0  0 100  0  0  0