Network observability data collection for OVS/OVN, DPDK, System metrics, and power monitoring metrics may have an impact on the data plane forwarding performance. 

Depending on the degree of the performance impact, this impact may not be acceptable. 

It is important to baseline this performance impact, and in some scenarios metrics collection for certain categories must be disabled by default and all categories made configurable to enable/disable for metrics collection.

Similarly, the user may decide to modify the extent of aggregation of these metrics and fine-tune the sampling/collection interval.