Which of the following metric types does NOT consume DDUs?

Cloud Foundry metrics do not consume Data Processing Units (DDUs) because they are automatically collected and provided by Dynatrace. The platform integrates with Cloud Foundry environments to gather telemetry data seamlessly, allowing users to monitor performance without incurring additional costs associated with the consumption of DDUs. This integration ensures that data related to applications running in Cloud Foundry is readily available for monitoring and analysis, making it efficient for users without impacting their DDU quotas.

In contrast, other metrics types like calculated DEM metrics, Python metrics, and custom metrics generally involve user-defined calculations or additional data processing, which does require the consumption of DDUs. Calculated DEM metrics are generated based on other metrics or user-defined formulas, Python metrics are created through custom scripts that need additional processing, and custom metrics are user-defined metrics that also demand resources. Thus, these types incur DDU charges due to the extra processing and hosting involved.