Python runtime and system metrics

OTel semantic CPython runtime, system and process metrics are collected by the system-metrics instrumentation. The metrics are prefixed with cpython.*, system.* and process.*.

The metric names and attributes are subject to change due to unstable semantic conventions and current non-conformance by the OTel Python implementation.

The system-metrics instrumentation is not included when auto-instrumenting Kubernetes applications via the OpenTelemetry Operator to avoid high cardinality and duplicated metrics.

This feature is supported by APM Python Library versions 4.0.0 and above. To enable, the psutil package must be installed, see Requirements to enable System Metrics for detailed instructions.