It's difficult to interpret the graph since the document doesn’t mention the units used in the graphs under the "Observe" -> "Dashboard" section.

https://docs.openshift.com/container-platform/4.16/observability/monitoring/about-ocp-monitoring/key-concepts.html#about-monitoring-dashboards_key-concepts

Suggesting adding a paragraph in the documentation that specifies the units used in the graphs under the "Observe" -> "Dashboard" section.