LL perf (Objects/world): LLSurface::idleUpdate recomputes normals and stats for dirty patches every frame #323
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sky_line/Slipstream#323
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From the LL-origin inefficiency audit (finding O18). File/line references are from commit
0229f8872c; re-locate them before working.LLSurface::idleUpdaterecomputes normals and stats for dirty patches every framellsurface.cpp:612-630. Patches waiting on a never-arriving neighbour stay dirty forever (llsurfacepatch.cpp:854-857).Verify the cost (profile or timer) before and after changing it.