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Issue ID




[Metal] Performance degradation on iOS devices




Priority: 2Necessary for shipping a final release


Severity: 4Minor or cosmetic issue

To reproduce:
1. Open the GraphicsPerf project with Unity 2018.2;
2. Change Graphics API to Metal;
3. Build and run DynamicVBO, Lights, Materials, Particles, ParticlesCollision and Tesselation scenes on iOS devices.
4. Repeat all steps with Unity 2018.3.0a6;
5. Compare frame time.

Important: let devices to cool down between each run.

Expected result: performance increases or at least remains the same.
Actual results: frame times increase 6-12% in trunk, even 40% with some devices.

Devices under testing:
-iPad Mini 4 (SoC: A8, iOS: 11.4),
-iPhone SE (SoC: A9, iOS: 10.0.1),
-iPhone X (SoC: A11, iOS: 11.4),
-iPad 5th gen (SoC: A9, iOS: 10.3).

Tested with: 2018.1.f1 and 2018.3.0a6

Comments (5)

  1. 21fb0469cf7cc087ce7a3354204530fb?d=mm


    Jan 07, 2019 06:09

    Not sure if this should be mentioned here, but there's performance degradation issues for Android builds as well. Just updated to 2018.3f2 from 2018.2 and builds on devices suffered a sudden performance drop.

  2. Ee1efe7dc3eb04d507c53a062244219d?d=mm


    Dec 28, 2018 01:39

    Please fix.

  3. 04eea23d250a87f075495085ee23aba6?d=mm


    Dec 14, 2018 20:12

    "Necessary for shipping a final release" - and now we have 2018.3 final and report is still only "Active" ?

  4. 4093de66c8fa3da20d6f5847e5f42d1b?d=mm


    Dec 08, 2018 06:59

    Bump - an update on this would be great, especially considering how long this issue has been active for. It’ll get fixed for 2018.4 LTS right!?

  5. Df6e86428e1d855b00b6734aa85bdefd?d=mm


    Sep 20, 2018 17:09

    Is this going to get addressed/fixed in 2018.3?

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