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Fixed in 2018.2.X

Fixed in 2017.4.X, 2018.1.X



Found in



Issue ID




UGUI.Rendering.UpdateBatches takes a very long time to complete when canvases are moving



Reproduction steps:
1) Download and open user's attached project
2) Open unity profiler
-- Any further step can be reproduced on most of the platforms, even inside the editor
-- However, most reliable repro can be observed on Android or iOS
3) Build "SampleScene.unity" scene and run it on an Android device
4) Attach profiler to the device
5) Press on "Page Up" or "Page Down" buttons
-- Notice that when canvases are moving profiler is showing performance spikes in UGUI.Rendering.UpdateBatches

Reproduced with:
2017.1.0b1, 2017.1.3p1, 2017.2.1p4, 2017.3.1p1, 2018.1.0b8, 2018.2.0a1

Unable to reproduce:

Reproduced with:
MacOS and Windows Editor
MacOS and Windows Standalone Player

Google Pixel 2, Android 8.1
Samsung Galaxy S5 Neo, Android 6.0.1
Samsung Galaxy S4 LTE, Android 5.0.1

iPhone 7+ iOS 11.2.5

Comments (6)

  1. umutertrk

    Sep 18, 2019 15:13

    I am getting this issue in Unity 2019.2.5.

  2. Noblauch

    Jul 18, 2019 15:21

    Having this problem in 2018.4.4f1
    Moving world spave cavases in VR. taking up to 15ms, destroying the performance.

  3. Spoon3d

    May 30, 2019 21:52

    Tried 4 different versions of unity. This issue is killing performance.

  4. tinytactics_developer

    May 28, 2019 17:10

    Still Not Fixed. Tested in unity 2018.3

  5. Partel-Lang

    May 15, 2019 07:12

    It is not fixed! Seeing this issue in Unity 2018.3.5f1.

  6. ogilberry

    Aug 24, 2018 00:23

    I am still having this issue in Unity 2018.2.2f1

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