Report virtual memory statistics

            SYNOPSIS
            vmstat [-n] [delay [ count]]
            vmstat[-V]
            

vmstat reports information about processes, memory, paging, block IO, traps, and cpu activity.

The first report produced gives averages since the last reboot. Additional reports give information on a sampling period of length delay. The process and memory reports are instantaneous in either case.

            [[email protected] root]# vmstat 1
               procs                      memory      swap          io     system      cpu
             r  b  w   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id
             0  0  0 6085936  91884 1707572 1333604   48   50    70    73   46     7  1  1 23
             0  0  0 6085936  88464 1707608 1335120    0    0  1374    49 2750  1784  0  0 100
             0  0  0 6085936  88048 1707660 1335952    0    0   753   913 2532  1883  0  0 100
             0  0  0 6085936  87632 1707824 1337460    0    0  1282   908 2452  2054  0  0 100
             0  0  0 6085936  79316 1708280 1340128  544    0  2220    78 3398  6322  0  0 100
            

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