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Fixed in 2022.2.X

Duplicate in 2020.3.X, 2021.2.X, 2021.3.X, 2022.1.X



Found in





Issue ID




Consistent EditorLoop 5-10ms spikes when using Metal API



Reproduction steps:
1. Create a new project
2. Make sure you are using "Metal" Graphics API (Player Settings > Other Settings > Auto Graphics API for Mac)
3. Open profiler and enter Play Mode

Expected result: No EditorLoop spikes are seen in the profiler
Actual result: Consistent EditorLoop 5-10ms spikes are seen in the profiler

Reproducible with: 2020.3.24f1, 2021.2.5f1, 2022.1.0a13, 2022.1.0b1
Not reproducible with: 2021.1.28f1, 2022.1.0a12
Could not test with: 2019.4.33f1 (Editor not responding)

-Not reproducible with OpenGLCore

  1. Resolution Note (fix version 2022.2):

    Fixed in: 2022.2.0a15

  2. Resolution Note (2020.3.X):

Comments (12)

  1. enhawk

    Jun 09, 2022 00:05

    I tried using Unity 2021 on an Intel mac and this issue locks up the entire OS.

    A fix can't come soon enough, only Unity 2019 is safe for Intel Mac users right now.

  2. enhawk

    May 24, 2022 05:10

    This is a serious issue for me in 2020.3.x

    It's not just the editor, mac builds suffer too.

  3. CosmicStud

    May 23, 2022 08:58

    Please make a fix for 2021.3.+++

  4. sereschkin

    May 12, 2022 12:11

    Unity Editor is next to unusable. I am forced to do builds every now and then just to check if performance is sufficient. Metal users are 3rd class citizens I guess. This issue exists since 1,5 years. No professionally to be found here.

  5. DiscoFever

    Apr 12, 2022 13:03

    2021.3.0 - Still pending --- I'm sure we can go until 2028.3.492

  6. VoodooDetective

    Apr 04, 2022 16:06

    Can you post a link to the duplicate bug?

  7. Alejandro-Martinez-Chacin

    Mar 30, 2022 14:20

    Is this somehow still related to this?

    I updated to 2021.2.17f1 from 2021.1.28f1 and the performance regression is appalling. Drag and dropping can take seconds to trigger or even stay there waiting for ever for a next UI input event to finalize it.

    Got it on video

  8. alpsoy

    Mar 18, 2022 10:47

    This doesn't seem to be ever fixed. Unity support plays three monkeys when asked.

  9. onefoxstudio

    Mar 15, 2022 13:33

    2021.2.15 and still no fix ? Not even a single comment on the issue and no ETA. Seriously ?

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