Search Issue Tracker
Fixed in 2018.2.X
Fixed in 2018.1.X
Votes
6
Found in
2018.1.0a7
2018.1.0b1
Issue ID
983582
Regression
Yes
Random spikes in CPU usage in runtime caused by Physics.Processing
Steps to reproduce:
1. Open attached “PerformanceIssue.zip” Unity project
2. Open scene “Main”
3. Enter Play mode
4. Open Window->Profiler
Expected results:
Smooth performance with no unexpected spikes in CPU usage
Actual results:
Physics.Processing CPU usage spikes at random moments
Reproduced in: 2018.2.0a1, 2018.1.0b2, 2018.1.0a7
Didn’t reproduce in 2018.1.0a6, 2017.3.0p1
Regression introduced in: 2018.1.0a7
Fixed in: 2018.2.0a6, 2018.1.0b13
Comments (34)
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- "IndexOutOfRangeException" and "NullReferenceException" are thrown and Element disappears from UI Builder when undoing rename of element in "Open Instance in Context" menu
- Select Scriptable Object window freezes and becomes unresponsive when currently opened UXML Template is selected for binding's Data Source
- [Linux] “ReleaseButton expects buttonId >= 0” error is thrown when importing Assets via drag and drop
- Asset gets unselected and added Subgraphs list item is not undone when performing Undo in Heatmap with Default Values asset Inspector
- Black square “shadow” artifacts visible when using Screen Space Reflections without maximum smoothing
Miscellaneous
Jan 16, 2021 18:15
NOT FIXED 2019.4
jstzwd
Jan 13, 2021 04:46
NOT FIXED!!! 2019.3.15, how come this just said it's fixed and you can not vote any more??
DIGMEDdoo
Jan 10, 2021 11:05
Not fixed: https://forum.unity.com/threads/unity-2018-lts-random-huge-physics-proccesing-spikes.1005687/
nabI38
Dec 15, 2020 15:58
This bug still exists in unity 2029.1f.1 and it is detreminatal to my games preformance as it breaks the immersion with massive lag spikes
naoya55
Sep 16, 2020 20:01
This bug is till exits in 2020.1.5f1
Xaon
Aug 04, 2020 15:20
Bug is reintroduced in 202.1.0f1
Oksana-Iashchuk
Jun 30, 2020 11:06
How to get “PerformanceIssue.zip” to test?
malt_r
Jun 04, 2020 18:32
This is happening to me in 2019.3.15f1
nscrivanich112325
May 24, 2020 03:44
Still exits in 2019.3.7f1
vfilho
May 22, 2020 20:48
Happening with me on 2019.2.21f1.