Check manual page of kernel.util

kernel.util

Author: Mathias Kettner

License: GPL

Distribution: official part of Check_MK

Supported Agents: Linux

This check measures the CPU utilization during the last check cycle. A level can be set only on wait (disk wait). If you want to set levels on your CPU usage you better use the check cpu.loads.

Check parameters

Parameter	Type	Description
warning	int	The percentage of wait that triggers a warning level.
critical	int	The percentage of wait that triggers a critical level The parameters may also be set to None, which makes the check alwas OK.

Performance data

Three variables: The percentage of time spent in user, system and wait (disk wait). The idle time can be computed by substracting those three values from 100%. The user value contains also nice.

Inventory

One check per host is created if the agent contains a kernel section containing cpu information. The inventory creates the check with the parameter kernel_util_default_levels, which is preset to None thus imposing no levels and making the check always OK.

Configuration variables

Variable	Type	Description
kernel_util_default_levels	int, int	Default levels used by inventorized checks. This is present to None, which disables the levels.