Search Issue Tracker
Fixed in 2019.1.X
Fixed in 2019.2.X
Votes
1
Found in
2019.1.0a9
2019.1.0f2
2019.2.0a1
2019.3.0a1
Issue ID
1149387
Regression
Yes
A Performance Issue appears when Brute Force Sorting a large amount of UI Objects with Canvas Component
How to reproduce:
1. Open the "SampleScene" Scene in the attached "New Unity Project.zip" Project
2. Click on the main "Canvas" GameObject
3. Enable the Canvas Group Component
4. Click on the "SortByName" and "SortByValue" Buttons in the Game View
5. Observe the Editor stuttering once you click on the Button
Expected Behavior: The UI Object sorting is as fast or slightly slower than without Canvas Group component enabled
Actual Behavior: The UI Object sorting is a lot slower than without Canvas Group component enabled
Reproducible with: 2019.1.0a9, 2019.1.1f1, 2019.2.0a14, 2019.3.0a1
Not reproducible with: 2017.4.26f1, 2018.3.14f1, 2019.1.0a8
Note: UIBehaviour.OnCanvasGroupChanged() is called nearly 1m times when sorting 100 UI elements. The number goes down to around 0.12m when you change the UI element counter to 50.
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
- var VisionOSEDRHeadromm has a comma instead of a dot when building with Metal Rendering App Mode and local OS localization is set to German
- IAP Catalog remove product “x” and add product “+” buttons are not consistent with other remove and add buttons in the Editor
- Performance issues in Play Mode when quickly hovering the mouse cursor over Hierarchy GameObjects
- Frame Debugger displays incorrect output when FidelityFX Super Resolution or Spatial-Temporal Upscaler is used with Temporal Anti-aliasing or Subpixel Morphological Anti-aliasing
- Crash with “Fatal Error! The file ‘MemoryStream’ is corrupted!” when adding a large number in Font Character Rects Size field
Resolution Note (fix version 2019.1):
Fixed in 2019.3.0a4, backported to 2019.1.0a5, 2019.2.0b4