# Instrumentation

LLMS index: [llms.txt](/llms.txt)

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Section pages:

- [Kubernetes Component SLI Metrics](/docs/reference/instrumentation/slis/): High-level indicators for measuring the reliability and performance of Kubernetes components.
- [CRI Pod & Container Metrics](/docs/reference/instrumentation/cri-pod-container-metrics/): Collection of Pod & Container metrics via the CRI.
- [Native Histogram Support for Kubernetes Metrics](/docs/reference/instrumentation/native-histograms/)
- [Node metrics data](/docs/reference/instrumentation/node-metrics/): Mechanisms for accessing metrics at node, volume, pod and container level, as seen by the kubelet.
- [Understand Pressure Stall Information (PSI) Metrics](/docs/reference/instrumentation/understand-psi-metrics/): Detailed explanation of Pressure Stall Information (PSI) metrics and how to use them to identify resource pressure in Kubernetes.
- [Kubernetes z-pages](/docs/reference/instrumentation/zpages/): Provides runtime diagnostics for Kubernetes components, offering insights into component runtime status and configuration flags.
- [Kubernetes Metrics Reference](/docs/reference/instrumentation/metrics/): Details of the metric data that Kubernetes components export.