Replace List with LocalVector on Skeleton3D's bone transform update. #92164
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TokageItLab
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May 20, 2024
akien-mga
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Along the lines of #91989, this is a CPU-oriented optimization around removing allocations from a hot path detected in Nuku Warriors that led to around 2000+ allocations per frame due to the usage of a linked list to do a pre-order traversal.
The alternative implementation is fairly minimal and reuses a LocalVector across frames. I'm coming up with a reliable way to benchmark these, but if @Calinou perhaps already has something that causes this same hot path to be hit, that could be ideal to prove the result in an open benchmark.
No behavior differences are expected.