Auto Tuning Buffers on Cisco Router

Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#buffers tune automatic
Router(config) #end
Router#

Router# show buffers tune
Tuning happened for the pool Small
Tuning happened at 22: 43: 19
Oldvalues
permanent: 50 minfree: 20 maxfree: 150
Newvalues
permanent: 62 minfree: 15 maxfree: 78
Tuning happened for the pool Middle
Tuning happened at 22: 43: 19
Oldvalues
permanent: 25 minfree: 10 maxfree: 150
Newvalues
permanent: 36 minfree: 9 maxfree: 45
Router#