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[iOS] Memory Settings of iOS Player has no effect.



Unity 2021.2 Editor introduced allocator thread block settings (Project Settings > Memory Settings). These settings are used when setting up dynamic heap allocator. On iOS platform dynamic heap allocator is supported only when running on simulator, not on a device. Therefore these memory settings have no effect on iOS player running on device. These Project Settings are misleading.

It should be investigated why dynamic heap allocator is disabled on iOS when running on device (there might be a sound reason for that). If dynamic heap allocator should stay disabled, memory settings for iOS target should be disabled as well, or have an indication that changing memory settings will not have effect when project is run on iOS devices.

Reproducible with: 2021.2.0b4, 2021.2.0b5, 2022.1.0a3
Not reproducible with: 2018.4, 2019.4, 2020.3, 2021.1, 2021.2.0b3

  1. Resolution Note (2022.1.X):

    Dynamic heap allocator is going to be enabled on iOS in near future and the settings will have an effect.

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