13.4.4.3. Cluster section

Physical Memory Utilization & Requests

Time series

Displays the total node memory capacity alongside actual memory utilization split into virtualization and non-virtualization workloads. This panel also shows the memory request plan (system-reserved requests and pod requests) so that you can compare actual usage to the scheduler expectations.

Cluster Utilization

Gauge

Displays the aggregated memory utilization of the nodes in the cluster. This panel also appears in the Summary section.

Virtual Memory Assignment

Time series

This panel displays the worst-case scenario if all virtual memory is used at present. It shows total node capacity, utilization without virtualization, and non-virtualization utilization combined with the total assigned VM memory. If the VM assigned virtual memory line nears or exceeds Node capacity, the cluster risks out-of-memory conditions under full VM memory pressure.

Cluster Virtual Committed

Gauge

Displays the percentage of committed virtual memory out of all of the allocatable physical memory. This panel also appears in the Summary section.

Cluster - Memory Pressure

Time series

Shows cluster-level memory PSI rates for Waiting (processes delayed by memory) and Stalled (processes completely blocked).

Cluster - Aggregated Swap

Time series

Shows total swap capacity and usage across all the nodes that you select. Rising swap usage indicates memory pressure that has not yet caused PSI stalls.