The cpu collector exposes metrics about CPU usage
| Metric name prefix | cpu |
| Data source | Perflib |
| Counters | ProcessorInformation (Windows Server 2008R2 and later) Processor (older versions) |
| Enabled by default? | Yes |
None
These metrics are available on all versions of Windows:
| Name | Description | Type | Labels |
|---|---|---|---|
windows_cpu_cstate_seconds_total |
Time spent in low-power idle states | counter | core, state |
windows_cpu_time_total |
Time that processor spent in different modes (idle, user, system, ...) | counter | core, mode |
windows_cpu_interrupts_total |
Total number of received and serviced hardware interrupts | counter | core |
windows_cpu_dpcs_total |
Total number of received and serviced deferred procedure calls (DPCs) | counter | core |
These metrics are only exposed on Windows Server 2008R2 and later:
| Name | Description | Type | Labels |
|---|---|---|---|
windows_cpu_clock_interrupts_total |
Total number of received and serviced clock tick interrupts | core |
|
windows_cpu_idle_break_events_total |
Total number of time processor was woken from idle | core |
|
windows_cpu_parking_status |
Parking Status represents whether a processor is parked or not | gauge |
|
windows_cpu_core_frequency_mhz |
Core frequency in megahertz | gauge |
|
windows_cpu_processor_performance |
Processor Performance is the average performance of the processor while it is executing instructions, as a percentage of the nominal performance of the processor. On some processors, Processor Performance may exceed 100% | gauge |
Show frequency of host CPU cores
windows_cpu_core_frequency_mhz{instance="localhost"}
Show cpu usage by mode.
sum by (mode) (irate(windows_cpu_time_total{instance="localhost"}[5m]))
prometheus.rules
# Alert on hosts with more than 80% CPU usage over a 10 minute period
- alert: CpuUsage
expr: 100 - (avg by (instance) (irate(windows_cpu_time_total{mode="idle"}[2m])) * 100) > 80
for: 10m
labels:
severity: warning
annotations:
summary: "CPU Usage (instance {{ $labels.instance }})"
description: "CPU Usage is more than 80%\n VALUE = {{ $value }}\n LABELS: {{ $labels }}"