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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.

Postponed

Fix In Review for 2019.4.X, 2020.3.X, 2021.1.X, 2021.2.X

Votes

1

Found in

2019.4.29f1

2019.4.31f1

2020.3

2021.1

2021.2

2022.1

Issue ID

1375646

Regression

No

Poor performance when loading or unloading a large Scene

uGUI

-

Reproduction steps:
1. Open the attached project "PerformanceTest.zip"
2. Open "Loader.unity" Scene
3. Enter Play Mode
4. Click "Load Heavy Scene" in the bottom left corner to load
5. Observe "time" to load in the bottom right corner.
6. Click "Load Heavy Scene" again to unload
7. Observe "time" to unload in the bottom right.

Expected result: The Scene loading and unloading time is similar to previous Editor versions
Actual result: The Scene loading and unloading time is slower than previous Editor versions

Reproducible with: 2019.4.29f1, 2020.3.17f1, 2021.1.17f1, 2021.2.0b9, 2022.1.0a6
Not reproducible with: 2019.4.28f1

  1. Response avatar

    Resolution Note (2022.1.X):

    This issue will be investigated further as part of our Domain Reload performance improvement as we are aware about the parts that could be further causing it. Will be closing this as the original source of the regression was fixed.

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