Reproduction steps:
1. Open the attached “PT.zip” project
2. Open the “Assets/Scenes/SampleScene.unity“ Scene
3. Open the Profiler window (Window > Analysis > Profiler)
4. Enter the Play Mode
5. Observe the CPU and GPU usage in the Profiler window
Actual result: Frequent large CPU and GPU spikes occur
Expected result: CPU and GPU usage should remain stable
Reproducible with: 17.3.0 (6000.3.23f1), 17.4.0 (6000.4.11f1), 17.5.0 (6000.5.11f1), 17.6.0 (6000.6.0f1), 17.7.0 (6000.7.0a6)
Not reproducible with: 17.0.4 (6000.0.83f1), 17.1.0 (6000.1.16f1), 17.2.0 (6000.2.12f1)
Reproducible on: Windows 11
Not reproducible on: No other environment tested
Note: In URP 17.0.4 – 17.2.0 only a few occasional spikes occur.