Search Issue Tracker
By Design
Votes
0
Found in
2019.4
2020.3
2021.1
2021.1.15f1
2021.2
2022.1
Issue ID
1361704
Regression
No
Using a NativeList.ParallelWriter in an IJobParallelFor completes in out of order thread results
Reproduction steps:
1. Open the attached project "1361704repro.zip"
2. Go to Assets/Scenes/"SampleScene"
3. Enter Play mode and observe the Console window
Expected result: Thread results are in order
Actual result: Thread results are out of order
Reproducible with: 2019.4.31f1, 2020.3.20f1, 2021.1.24f1, 2021.2.0b14, 2022.1.0a11
Notes:
-Changing the IJobParallelFor that populated the NativeList with NativeList.ParallelWriter.AddNoResize to be IJobFor fixed the issue
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
- "Shader warning in 'Hidden/Light2D': implicit truncation of vector type" is thrown when building Universal 2D template
- AI Assistant breaks compilation of packages using System.Runtime.CompilerServices.Unsafe via auto-referencing
- Unity Hub checks the "Documentation" module by default on the 6.4 and 6.5 streams despite that it was unchecked with the previous installs
- Shortcut that toggles between Dopesheet and Curves Views in the Animation Window's Timeline is mislabed
- Property List Items Overlap onto the Property List's top edge when scrolling through a long Property List
Resolution Note:
This is expected behavior. User cannot expect specific order when list is populated in parallel. If sorted order is desired, user must run sort after the list is populated.