prstat,vmstat,sar

Hi All,

I have monitored prstat,vmstat and sar -u on sun system for 24 hours. Following is the output.

Average Utilization :
vmstat : 65%
sar : 66%
prstat :51%.

vmstat and sar output are same but there is a 14-15% difference with prstat.

What is the reason of this ?

Regards,
snjksh.

Can you clarify what column/metric you are referring to ? Neither vmstat nor prstat display anything called "average utilization".