In Dynatrace, you have various types of metrics at your disposal:

  • Built-in metrics provided by OneAgent. These have the builtin: prefix in the metric key.
  • Extension metrics provided by OneAgent or ActiveGate extensions. These have the ext: prefix in the metric key.
  • Calculated metrics you create. These have the calc: prefix in the metric key.
  • Custom metrics you can feed to Dynatrace via metric ingestion. These don't have any fixed prefix, as the ingestion protocol is completely flexible.