vmstat
The vmstat command reports statistics about kernel threads, virtual memory, disks, traps, and CPU activity. Reports generated by the vmstat command can be used to balance system load activity. These system-wide statistics (among all processors) are calculated as averages for values expressed as percentages, and as sums otherwise.
If the vmstat command is invoked without flags, the report contains a summary of the virtual memory activity since system startup. Basically, you can set the interval and count for this command. The Interval parameter specifies the amount of time in seconds between each report. If the interval parameter is not specified, the vmstat command generates a single report that contains statistics for the time since system startup and then exits. The count parameter can only be specified with the interval parameter.
After using the interval and count parameters, you get a result...
Figure 15-4 Output of command vmstat
For more details about this command, go to the IBM pSeries information center and search vmstat:
http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp
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