Thanks for the response. The device is a AppleTV 4K (Model A1842).
For anyone else coming across this, the performance limiters are supported on A11 and newer CPUs according to https://developer.apple.com/documentation/metal/optimizing_performance_with_the_gpu_counters_instrument
bswift
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
Post
Replies
Boosts
Views
Activity
Since I can't attach a screen shot here nor provide a link to a screenshot on Flickr, I've opened a feedback with screen shot attached. FB7846981
Click on the user icon (looks like a person) in the upper right, then click on your username (which doesn't look like a link).
Bug report is FB7799650.
Also, discovered issue only occurs on discrete GPU, works as expected on integrated graphics.