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System Administration Guide: Advanced Administration

ProcedureHow to Display Virtual Memory Statistics (vmstat)

  1. Collect virtual memory statistics by using the vmstat command with a time interval in seconds.


    $ vmstat n

    where n is the interval in seconds between reports.

Example 13–1 Displaying Virtual Memory Statistics

The following example shows the vmstat display of statistics that were gathered at five-second intervals.


$ vmstat 5
kthr      memory            page            disk          faults      cpu
 r b w   swap  free  re  mf pi po fr de sr dd f0 s1 --   in   sy   cs us sy id
 0 0 0 863160 365680  0   3  1  0  0  0  0  0  0  0  0  406  378  209  1  0 99
 0 0 0 765640 208568  0  36  0  0  0  0  0  0  0  0  0  479 4445 1378  3  3 94
 0 0 0 765640 208568  0   0  0  0  0  0  0  0  0  0  0  423  214  235  0  0 100
 0 0 0 765712 208640  0   0  0  0  0  0  0  3  0  0  0  412  158  181  0  0 100
 0 0 0 765832 208760  0   0  0  0  0  0  0  0  0  0  0  402  157  179  0  0 100
 0 0 0 765832 208760  0   0  0  0  0  0  0  0  0  0  0  403  153  182  0  0 100
 0 0 0 765832 208760  0   0  0  0  0  0  0  0  0  0  0  402  168  177  0  0 100
 0 0 0 765832 208760  0   0  0  0  0  0  0  0  0  0  0  402  153  178  0  0 100
 0 0 0 765832 208760  0  18  0  0  0  0  0  0  0  0  0  407  165  186  0  0 100