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Under Consideration for 2021.3.X, 2022.3.X
Fixed in 2023.3.0b10
Votes
2
Found in
2021.3.33f1
2022.3.16f1
2023.2.4f1
2023.3.0a19
Issue ID
UUM-59367
Regression
No
WebGL Player leaks memory when allocating delegate functions
How to reproduce:
1. Open the “WebGL_Player_EventLeak_Issue“ project
2. Open the “MemoryTest” scene
3. Make sure to switch the Platform to “WebGL” (File > Build Settings > “WebGL” > “Switch Platform”)
4. Build And Run
5. In the Player press the F key then wait for 2 seconds
6. Press the L key
7. Observe the “Average growth max used” text
Expected result: The average growth is around 0.11 Mb/Frame
Actual result: The average growth is around 0.38 Mb/Frame
Reproducible with: 2021.3.33f1, 2022.3.16f1, 2023.2.4f1, 2023.3.0a19
Reproduced on: Windows 11
Not reproduced on: No other environment tested
Browser reproduced on: Firefox, Edge, Chrome
Notes:
1. Not reproducible in the Editor
2. Not reproducible in the Windows Player
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Resolution Note (fix version 2023.3.0b10):
Fix by improving Web platform documentation to highlight the limitation that WebAssembly VMs cannot collect in the middle of executing C# code. Documentation has been updated here: https://docs.unity3d.com/2023.3/Documentation/Manual/webgl-memory.html.