HP VPN Firewall Appliances Getting Started Command Reference

display cpu-usage history

Use display cpu-usage history to display historical CPU usage statistics in charts.

Syntax

display cpu-usage history [ task task-id ] [ | { begin | exclude | include } regular-expression ]

Views

Any view

Default command level

1: M o n i t o r l e ve l

Parameters

task task-id: Displays the historical CPU usage statistics for the specified task, where task-id represents the

task number. If the task-id argument is not provided, this command displays the historical CPU usage

statistics for the entire system (the CPU usage rates of the entire system is the sum of CPU usage rates of

all tasks).

|: Filters command output by specifying a regular expression. For more information about regular

expressions, see the chapter on CLI in Getting Started Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

exclude: Displays all lines that do not match the specified regular expression.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Usage guidelines

If no argument is provided, this command displays the historical CPU usage statistics for the whole

system.

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%|