Metal performance hit with tvOS 14

Graphics & Games General
bswift OP
Created Sep ’20
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Anyone notice a Metal performance hit on devices running tvOS 14.0.1 vs 13.4.8, possibly due to compositor (backboardd) using more time?

In 13.4.8 Instruments A10X State is typically 2 channels active. However, in 14.0.1 it is typically 3 channels active.
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bswift OP
Sep ’20
To be a little more specific, the App's display fragment shader execution time reported by GPU frame capture increased for 2.5ms to 3.5ms for a 4K display.
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Metal performance hit with tvOS 14
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