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Won't Fix
Votes
0
Found in
2018.4
2019.4
2019.4.0f1
2020.1
2020.2
2021.1
Issue ID
1273728
Regression
No
~5-7 ms Physics.Processing spikes periodically appear in a relatively empty project on specific Android devices
Repro steps:
1. Open attached project
2. Create a Physics Material and set Bounciness to 1
3. Attach the material to the plane and sphere
4. Build and Run on Android
5. Connect the Profiler
Actual: >~5 ms spikes appear periodically
Reproducible with: 2018.4.29f1, 2019.4.12f1, 2020.1.9f1, 2020.2.0b7, 2021.1.0a1
Tested and reproduce on these devices:
----------, Huawei HUAWEI Mate 20 Pro (LYA-L29), Android 9, CPU: HiSilicon Kirin 980, GPU: Mali-G76
----------, Oneplus - (GM1913), Android 9, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
Didn't reproduce on:
VLNQA00001, Google Pixel 2 (Pixel 2), Android 11, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00013, Samsung Galaxy S6 edge+ (SM-G928F), Android 7.0, CPU: Exynos 7 Octa 7420, GPU: Mali-T760
VLNQA00128, Samsung Galaxy Note8 (SM-N950F), Android 9, CPU: Exynos 9 Octa 8895, GPU: Mali-G71
VLNQA00225, Qualcomm (SDM845 for arm64), Android 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630
----------, Google Pixel 3 XL (Pixel 3 XL), Android 10, CPU: NOT FOUND, GPU: Adreno (TM) 630
N/A, Samsung Galaxy S9 (SM-G960F), Android 8.0.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00313, Huawei Y6 Ⅱ Compact (HUAWEI LYO-L01), Android 5.1, CPU: MediaTek MT6735, GPU: Mali-T720
VLNQA00316, Samsung Galaxy Note10 (SM-N970F), Android 9, CPU: Exynos 9 Series 9825, GPU: Mali-G76
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Resolution Note (2020.2.X):
This is due to how we profile physics and not physics performance. These devices also ignore thread affinity running physics stuff on little cores and there is nothing we can do to improve this.