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Specify an instance family to use as the baseline reference for CPU performance. All instance types that All instance types that match your specified attributes will be compared against the CPU performance of the referenced instance family, regardless of CPU manufacturer or architecture differences. Currently only one instance family can be specified in the list.
Properties
The instance family to use as a baseline reference. Make sure that you specify the correct value for the instance family. The instance family is everything before the period (.) in the instance type name. For example, in the instance `c6i.large`, the instance family is `c6i`, not `c6`. For more information, see Amazon EC2 instance type naming conventions in Amazon EC2 Instance Types. The following instance types are not supported for performance protection.