Metric kepler_node_package_joules_total on RHEL9/aarch64 only reports mode=dynamic, not "idle"

[jharriga]

What happened?

Using latest kepler (v0.7.11) on Ampere server I do not see mode="idle" values, but I do on x86_64 system.
Both systems are running RHEL 9.3

root# curl localhost:8888/metrics|grep kepler_node_package_joules

PERF-ARM-11 <-- Ampere
kepler_node_package_joules_total{mode="dynamic",package="0",source="intel_rapl"} 825.996

PERF-INTEL-28 <-- x86_64
kepler_node_package_joules_total{instance="perf-intel-28",mode="dynamic",package="0",source="rapl-sysfs"} 151.503
kepler_node_package_joules_total{instance="perf-intel-28",mode="idle",package="0",source="rapl-sysfs"} 55646.229

What did you expect to happen?

I expected the same power usage metrics on both platform types

How can we reproduce it (as minimally and precisely as possible)?

Install kepler v0.7.11 on an aarch64 and x86_64 system
Retrieve and review the metrics for kepler_node_package_joules_total

Anything else we need to know?

No response

Kepler image tag

# rpm -qa | grep kepler container-kepler-0.7.11-1.noarch

Kubernetes version

$ kubectl version
# paste output here

Cloud provider or bare metal

bare metal

OS version

# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here

# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here

Install tools

Kepler deployment config

For on kubernetes:

$ KEPLER_NAMESPACE=kepler

# provide kepler configmap
$ kubectl get configmap kepler-cfm -n ${KEPLER_NAMESPACE}
# paste output here

# provide kepler deployment description
$ kubectl describe deployment kepler-exporter -n ${KEPLER_NAMESPACE}

For standalone:

put your Kepler command argument here

Container runtime (CRI) and version (if applicable)

Related plugins (CNI, CSI, ...) and versions (if applicable)