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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.
Postponed
Votes
0
Found in
5.3.3p3
Issue ID
843626
Regression
Yes
[5.4][Threading] CullDirectionalShadowCasters performance regression in 5.4+ on lots-of-cores CPUs (e.g. 24 thread Xeons)
Reproduction steps:
1. Open the attached project (Scratch53_MeshSkinningProfiler.zip);
2. Open the scene (Training Room.unity);
3. Enter the play mode;
4. Open the profiler window;
5. Observe CameraRender>Culling ms.
Expected result: The project's performance is normal, no spikes in the CPU Usage.
Actual result: The project is running very slow.
Reproduced on: 5.4.1f1 and newer versions.
Not reproduced on: 5.3.3p3 version of Unity.
Note: This regression is very hardware specific. The bug appears only on Intel(R) Xeon(R) CPU X5680 with 24 cores.
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