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CPU

The CPU collector is used to collect the CPU utilization rate of the system.

Configuration

Collector Configuration

After successfully installing and starting DataKit, the CPU collector will be enabled by default without the need for manual activation.

Go to the conf.d/host directory under the DataKit installation directory, copy cpu.conf.sample and name it cpu.conf. Examples are as follows:

[[inputs.cpu]]
  ## Collect interval, default is 10 seconds. (optional)
  interval = '10s'

  ## Collect CPU usage per core, default is false. (optional)
  percpu = false

  ## Setting disable_temperature_collect to false will collect cpu temperature stats for linux. (deprecated)
  # disable_temperature_collect = false

  ## Enable to collect core temperature data.
  enable_temperature = true

  ## Enable gets average load information every five seconds.
  enable_load5s = true

[inputs.cpu.tags]
  # some_tag = "some_value"
  # more_tag = "some_other_value"

After configuration, restart Datakit.

Can be turned on by ConfigMap Injection Collector Configuration or Config ENV_DATAKIT_INPUTS .

Can also be turned on by environment variables, (needs to be added as the default collector in ENV_DEFAULT_ENABLED_INPUTS):

  • ENV_INPUT_CPU_INTERVAL

    Collect interval

    Type: Duration

    input.conf: interval

    Default: 10s

  • ENV_INPUT_CPU_PERCPU

    Collect CPU usage per core

    Type: Boolean

    input.conf: percpu

    Default: false

  • ENV_INPUT_CPU_ENABLE_TEMPERATURE

    Enable to collect core temperature data

    Type: Boolean

    input.conf: enable_temperature

    Default: true

  • ENV_INPUT_CPU_ENABLE_LOAD5S

    Enable gets average load information every five seconds

    Type: Boolean

    input.conf: enable_load5s

    Default: false

  • ENV_INPUT_CPU_TAGS

    Customize tags. If there is a tag with the same name in the configuration file, it will be overwritten

    Type: String

    input.conf: tags

    Example: tag1=value1,tag2=value2

Metric

For all of the following data collections, a global tag named host is appended by default (the tag value is the host name of the DataKit), or other tags can be specified in the configuration through [inputs.cpu.tags]:

 [inputs.cpu.tags]
  # some_tag = "some_value"
  # more_tag = "some_other_value"
  # ...

cpu

  • tag
Tag Description
cpu CPU core ID. For cpu-total, it means all-CPUs-in-one-tag. If you want every CPU's metric, please enable percpu option in cpu.conf or set ENV_INPUT_CPU_PERCPU under K8s
host System hostname.
  • Metric list
Metric Description Type Unit
core_temperature CPU core temperature. This is collected by default. Only collect the average temperature of all cores. float C
load5s CPU average load in 5 seconds. int -
usage_guest % CPU spent running a virtual CPU for guest operating systems. float percent
usage_guest_nice % CPU spent running a nice guest(virtual CPU for guest operating systems). float percent
usage_idle % CPU in the idle task. float percent
usage_iowait % CPU waiting for I/O to complete. float percent
usage_irq % CPU servicing hardware interrupts. float percent
usage_nice % CPU in user mode with low priority (nice). float percent
usage_softirq % CPU servicing soft interrupts. float percent
usage_steal % CPU spent in other operating systems when running in a virtualized environment. float percent
usage_system % CPU in system mode. float percent
usage_total % CPU in total active usage, as well as (100 - usage_idle). float percent
usage_user % CPU in user mode. float percent

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