My app uses CoreML to run neural network (CoreML use CPU for most layers). Some time my performance is very good but after 30 seconds speed become slowly (fps is much less). I profiled it and found, that iOS use performance core for my app at the beginning. After 30 seconds it stops use Performance cores and starts use efficient cores (them frequency is less). You may see to on the screenshot.
qos of my queue is .userInitiated. Also I tried .userInteractive, but is don't change anything.
I assume that it is cores planning feature of iOS. But I cannot find any information about it.
Is there documentation, which describe this behavior? Can I say iOS use performance core for my app all the time?
I use iPhone XR with iOS 14.7.1.
UnickDevApp
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