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1) Virtual Memory Statistics
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procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 1  0      0 22482496   8532 547620    0    0    15   159  416 1275  4  3 90  1  0
