Add documentation for system collector

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Ben Reedy 2019-08-26 21:07:55 +10:00
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@ -16,18 +16,24 @@ None
Name | Description | Type | Labels
-----|-------------|------|-------
`wmi_system_context_switches_total` | _Not yet documented_ | counter | None
`wmi_system_exception_dispatches_total` | _Not yet documented_ | counter | None
`wmi_system_processor_queue_length` | _Not yet documented_ | gauge | None
`wmi_system_system_calls_total` | _Not yet documented_ | counter | None
`wmi_system_system_up_time` | _Not yet documented_ | gauge | None
`wmi_system_threads` | _Not yet documented_ | gauge | None
`wmi_system_context_switches_total` | Total number of [context switches](https://en.wikipedia.org/wiki/Context_switch) | counter | None
`wmi_system_exception_dispatches_total` | Total exceptions dispatched by the system | counter | None
`wmi_system_processor_queue_length` | Number of threads in the processor queue. There is a single queue for processor time even on computers with multiple processors. | gauge | None
`wmi_system_system_calls_total` | Total combined calls to Windows NT system service routines by all processes running on the computer | counter | None
`wmi_system_system_up_time` | Time of last boot of system | gauge | None
`wmi_system_threads` | Number of Windows system [threads](https://en.wikipedia.org/wiki/Thread_(computing)) | gauge | None
### Example metric
_This collector does not yet have explained examples, we would appreciate your help adding them!_
Show current number of system threads
```
wmi_system_threads{instance="localhost"}
```
## Useful queries
_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
Find hosts that have rebooted in the last 24 hours
```
time() - wmi_system_system_up_time < 86400
```
## Alerting examples
_This collector does not yet have alerting examples, we would appreciate your help adding them!_