202
In IRF mode:
display cpu-usage history
[
job
job-id
]
[
chassis
chassis-number
slot
slot-number
[
cpu
cpu-number
] ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
job
job-id
: Specifies a process by its ID. If you do not specify this option, the command displays the
historical CPU usage statistics for the entire system, which is the sum of the historical CPU usage
statistics for all processes in the system. To view the IDs and names of the running processes, use
the
display process
command. For more information, see
Network Management and Monitoring
Configuration Guide
.
slot
slot-number
: Specifies a card by its slot number. If you do not specify this option, the command
displays the historical CPU usage statistics for the active MPU or switching fabric module. (In
standalone mode.)
chassis
chassis-number
slot
slot-number
: Specifies a card on an IRF member device by its slot
number and the member ID. If you do not specify this option, this command displays the historical
CPU usage statistics for all cards in the IRF fabric. (In IRF mode.)
cpu
cpu-number
: Displays the historical CPU usage statistics. The
cpu-number
argument can only
be 0.
Usage guidelines
The system regularly collects CPU usage statistics and saves the statistics in the history record area.
This command displays the CPU usage statistics for the last 60 minutes in axes as follows:
•
The vertical axis represents the CPU usage. If a statistic is not a multiple of the usage step, it is
rounded up or down to the closest multiple of the usage step, whichever is closer. For example,
if the CPU usage step is 5%, the statistic 53% is rounded up to 55%, and the statistic 52% is
rounded down to 50%.
•
The horizontal axis represents the time.
•
Consecutive pound signs (#) indicate the CPU usage at a specific time. The value on the
vertical axis for the topmost pound sign at a specific time represents the CPU usage at that
time.
Examples
# Display the historical CPU usage statistics for the entire system.
<Sysname> display cpu-usage history
100%|
95%|
90%|
85%|
80%|
75%|
70%|
65%|