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Update rapl collector with powercap limits

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This commit is contained in:
Thomas Roehl
2025-04-04 12:04:27 +02:00
committed by Michael Panzlaff
parent bed5491068
commit 53fdda341e
2 changed files with 223 additions and 82 deletions
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18
collectors/raplMetric.md
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@@ -11,16 +11,24 @@ hugo_path: docs/reference/cc-metric-collector/collectors/rapl.md
## `rapl` collector
This collector reads running average power limit (RAPL) monitoring attributes to compute average power consumption metrics. See <https://www.kernel.org/doc/html/latest/power/powercap/powercap.html#monitoring-attributes>.
The Likwid metric collector provides similar functionality.
This collector reads running average power limit (RAPL) monitoring attributes to compute average power consumption metrics. See <https://www.kernel.org/doc/html/latest/power/powercap/powercap.html>.
```json
"rapl": {
"exclude_device_by_id": ["0:1", "0:2"],
"exclude_device_by_name": ["psys"]
"exclude_device_by_name": ["psys"],
"skip_energy_reading": false,
"skip_limits_reading": false,
"only_enabled_limits": true
}
```
Metrics:
* `rapl_average_power`: average power consumption in Watt. The average is computed over the entire runtime from the last measurement to the current measurement
* `rapl_<domain>_average_power`: average power consumption in Watt. The average is computed over the entire runtime from the last measurement to the current measurement
* `rapl_<domain>_energy`: Difference from the last measurement
* `rapl_<domain>_limit_short_term`: Short term powercap setting for the domain
* `rapl_<domain>_limit_long_term`: Long term powercap setting for the domain
Only the `rapl_<domain>_average_power` and `rapl_<domain>_energy` metrics require root-permissions. The limits can be read as user. Some domains have limits available but they are not enabled. By default, only enabled domain limits are collected.
Energy and power measurments can also be done with the Likwid metric collector.