How to see cpu-usage on msr Routers

#
<I>dis cpu-usage
Unit CPU usage:
       0% in last 5 seconds
       0% in last 1 minute
       0% in last 5 minutes
 #
     
<I>dis cpu-usage history    -> for graphical Display  

#

100%|
 95%|
 90%|
 85%|
 80%|
 75%|
 70%|
 65%|
 60%|
 55%|
 50%|
 45%|
 40%|
 35%|
 30%|
 25%|
 20%|
 15%|
 10%|
  5%|
     ------------------------------------------------------------
              10        20        30        40        50        60  (minutes)
                      cpu-usage last 60 minutes(SYSTEM)
<I>