To display virtual memory statistics, use the vmstat command with a time interval in seconds.
$ vmstat n
where n is the interval in seconds between reports.
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