CPU

CPU Collector

To collect information about the number of CPU cores and their features on a host, use the cpu collector.

Parameters

None.

Example Collector Definition

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: cpu
spec:
  hostCollectors:
    - cpu: {}

Included Resources

The results of the cpu collector are stored in the host-collectors/system directory of the support bundle.

`cpu.json`

Example of the resulting JSON file:

{"logicalCount":4,"physicalCount":2,"flags": ["cmov", "cx8", "fpu", "fxsr" ]}

CPU Analyzer

The cpu analyzer supports multiple outcomes by validating the number of CPU cores, for example:

count < 32: Less than 32 CPU cores were detected.
count > 4: More than 4 CPU cores were detected.

This analyzer also supports validating the presence of specific CPU features, for example:

supports x86-64-v2: The CPU supports the x86-64-v2 feature set.
supports x86-64-v3: The CPU supports the x86-64-v3 feature set.

Supported CPU features (microarchitectures) set are:

x86-64
x86-64-v2
x86-64-v3
x86-64-v4

Check for individual CPU flags is also supported. The HostPreflight below exemplifies how to check for specific CPU flags:

apiVersion: troubleshoot.sh/v1beta2
kind: HostPreflight
metadata:
    name: ec-cluster-preflight
spec:
    collectors:
        - cpu: {}
    analyzers:
        - cpu:
            checkName: CPU
            outcomes:
                - pass:
                    when: hasFlags cmov,cx8,fpu,fxsr,mmx
                    message: CPU supports all required flags
                - fail: message: CPU not supported

Examples Analyzer Definition

Collecting and analyzing the number of CPU cores:

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: cpu
spec:
  hostCollectors:
    - cpu: {}
  hostAnalyzers:
    - cpu:
        checkName: "Number of CPUs"
        outcomes:
          - fail:
              when: "count < 2"
              message: At least 2 CPU cores are required, and 4 CPU cores are recommended
          - warn:
              when: "count < 4"
              message: At least 4 CPU cores are recommended
          - pass:
              message: This server has at least 4 CPU cores

Collecting and analyzing the presence of specific CPU features:

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: cpu
spec:
  hostCollectors:
    - cpu: {}
  hostAnalyzers:
    - cpu:
        checkName: "Supports x86-64-v2"
        outcomes:
          - pass:
              when: "supports x86-64-v2"
              message: This server cpu suports the x86-64-v2 features
          - fail:
              message: This server does not support the x86-64-v2 features

Collecting and analyzing the presence of specific CPU architecture:

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: cpu
spec:
  hostCollectors:
    - cpu: {}
  hostAnalyzers:
    - cpu:
        checkName: "Check machine architecture"
        outcomes:
          - fail:
              when: "machineArch == x86_64"
              message: x86_64 machine architecture is not supported
          - pass:
              when: "machineArch == arm64"
              message: It is recommended to use arm64 machine architecture
          - warn:
              message: Supported machine architecture was not detected

Collect and analyze information about CPU features, core counts and architecture.