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Won't Fix
Votes
3
Found in [Package]
5.3.1
Issue ID
1168417
Regression
Yes
[Metal][HDRP]Editor activity spikes on Semaphore.WaitForSignal when Shader Graph window is open and undocked
How to reproduce:
1. Open the attached project ("HDRP_Performance")
2. Open the Profiler and enable the Profile Editor
3. In Profiler, select the Hierarchy preview
4. In Profiler search field type Semaphore.WaitForSignal and press record
5. In Assets, double click on the "TestShaderGraph" and make sure that Shader Graph window is undocked
6. Observe the Profiler
Expected result: Semaphore.WaitForSignal does not spike
Actual result: Random Semaphore.WaitForSignal spikes are visible
Reproducible with: 2019.1.9f1(HDRP 5.7.2, Shader Graph 5.7.2), 2019.2.0b7(HDRP 6.7.1, Shader Graph 6.5.2), 2019.3.0a9(HDRP 6.5.2, Shader Graph 6.5.2)
Not reproducible with: 2018.4.4f1(HDRP 4.1.0, Shader Graph 4.10.0), 2019.1.0b6(HDRP 5.2.3, Shader Graph 5.2.3)
Notes:
- On 2019.3.0a9, the issue is reproducible without any undocked windows
- Testing 2019.2.0a6 and earlier resulted in inconsistent reproduction, most likely due to the inconsistencies of HDRP compatibility
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