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perf: GPU HBAO profiling #41

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pollend opened this issue Jul 2, 2023 · 1 comment
Open

perf: GPU HBAO profiling #41

pollend opened this issue Jul 2, 2023 · 1 comment

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@pollend
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pollend commented Jul 2, 2023

HBAO+ is a majority of the frame time I think this can be improve to a degree. the other major problem is the turn around time where the pre-Z pass is dumped back to the GPU for additional handling.

  • 13.26% of the frame is just sitting idle
  • 23.75% HBAO+
  • G-Buffer 8.34%

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@pollend
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pollend commented Jul 2, 2023 •
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this is with optimization, looks like there is very poor gpu occupancy.
image

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