To understand this command and its output, Let's check it from user manual first.
1:
------Content from Riverbed® Command-Line Interface RiOS Version 9.2----------
Reference Manual
show stats cpu
Displays connection pooling statistics.
Syntax
show stats cpu <time-period>
Parameters :<time-period> Time period for which to display statistics: 1min, 5min, hour, day, week, month
Example
amnesiac > show stats cpu
CPU 1
Utilization: 3%
Peak Utilization Last Hour: 10% at 2014/10/17 18:10:03
Avg. Utilization Last Hour: 4%
CPU 2
Utilization: 7%
Peak Utilization Last Hour: 9% at 2014/10/17 17:43:13
Avg. Utilization Last Hour: 4%
2: More explanation of command output
show stats cpu
Displays connection pooling statistics.
The Command output means during previous CPU slice (or small time slot) counting window , for task "connection pooling", the statistics result is xx% xx Seconds , with time stamp 201x/xx/xx HH:MM:SS (Sample time)
Eg, for previous command output, it means
CPU 1 has 3% Utilization now; it has 10% Peak Utilization of Last Hour, time stamp is 2014/10/17 18:10:03 ; Average Utilization is 4% for Last Hour.
CPU 2 has 7% Utilization now; it has 9% Peak Utilization of Last Hour, time stamp is 2014/10/17 17:43:13 ; Average Utilization is 4% for Last Hour.