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Won't Fix

Won't Fix in 0.51.X



Found in [Package]


Issue ID




Huge CPU spike when Android is at first DOTS Physics system update

Package: Entity Component System (ECS)


Reproduction steps:
1. Open the attached Project “BugRepro”
2. Open File > Build Settings
3. Enable Development Build and Autoconnect Profiler
4. Open the Profiler in Window > Analysis > Profiler
5. Build and Run to an Android device
6. Press on CreateStaticbody and CreateDynamicBody Buttons
7. Observe the Profiler

Expected result: No CPU usage spikes when pressing the Buttons
Actual result: World Unity.Entities.FixedStepSimulationSystemGroup Time spikes after pressing the Buttons

Reproducible with: 0.51.1 (2021.3.28f1)
Can’t test with: 1.0.0-pre.65, 1.0.11 (2022.3.5f1) (Upgrading versions breaks the Project)

Reproducible on: VLNQA00122 - Samsung Galaxy S9 (SM-G960F), CPU: Exynos 9 Series 9810, GPU: Mali-G72, OS: 10.0.0

  1. Resolution Note:

    There are no fixes planned for this Bug

  2. Resolution Note (0.51.X):

    I can't reproduce the high spike, the maximum value doesn't exceed 9% of CPU usage seen in the Profiler window.

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