The "Data Aggregator Polling" dashboard has views for:
- Polled Item Count - Number of polled items
- Calculated Metrics Per Second - Metrics calculated per second
- Device Polling Statistics - Total Number of Stopped Polls due to Prior Timeouts
- Stopped Polls By Device - Number of Stopped Polls polls per device
The First three charts can be used to determine the appropriate values to used for setting Threshold Monitoring Alerts for these metrics.