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Votes
0
Found in
2018.3.0a6
2018.3.3f1
Issue ID
1122675
Regression
Yes
Scene saves very slowly when it contains a lot of prefabs
Reproduction steps
1. Open the project inside of "DimensionBrothers.zip"
2. Open the "Level2_demo" scene
3. Make any change to the scene and save it
Expected: Scene saves as fast as an identical scene with regular GameObjects in place of Prefabs
Actual: Scene saves much slower although it is almost the same scene as "Level2_Demo_Unpacked", except for GameObjects packed in the prefab
Reproduces on: 2018.3.0a6, 2018.3.3f1
Does not reproduce on: 2017.4.20f2, 2018.3a5
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Resolution Note:
The performance regression was caused by third-party plugins marking the Prefabs as dirty. In result, the marked Prefabs are saved every time together with the scene save.