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Issue ID




[Metal] Performance degradation on iOS devices



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 (8)

  1. Eb2be104bb042b0bd83d309c4bb3b7c6?d=mm


    Aug 11, 2020 10:28!/;area=summary;u=341770;u=4039!/;area=summary;u=341718!/!/!/!/

  2. D303fe69a9dfc910c8387bec722ef703?d=mm


    Jul 30, 2020 13:40

    Our biggest opportunity being the educated is to spread the education to the others living near or far to us. it tells us that it will our duty after getting it to spread over the worlds as all the other individuals are having the need of it badly in their living too.

  3. 41e194bc6932baeaeb2e633c28d0830a?d=mm


    Jul 28, 2020 10:11;u=245304;u=19154;u=556429;;u=245305;;u=19155;u=556432;;u=556433;u=245302;;u=556434,,,,

  4. 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.

  5. Ee1efe7dc3eb04d507c53a062244219d?d=mm


    Dec 28, 2018 01:39

    Please fix.

  6. 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" ?

  7. 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!?

  8. Df6e86428e1d855b00b6734aa85bdefd?d=mm


    Sep 20, 2018 17:09

    Is this going to get addressed/fixed in 2018.3?

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