R3303-HP HSR6800 Routers Fundamentals Command Reference

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regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.
Usage guidelines
This command displays the historical CPU usage statistics for the active MPU if no argument is provided.
The system regularly collects CPU usage statistics and saves the statistics in the history record area. The
display cpu-usage history command displays the CPU usage statistics for the last 60 minutes in axes,
where:
• 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 # sign at a specific time represents the CPU usage at that time.
Examples
# Display historical CPU usage statistics.
<Sysname> display cpu-usage history
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)
The output shows the historical CPU usage statistics (with the task name SYSTEM) in the last 60 minutes:
• 5%: 12 minutes ago
• 10%: 13 minutes ago
• 15 % : 14 m i n u t e s a g o
• 10%: 15 minutes ago
• 5%: 16 and 17 minutes ago