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Unity does not have an internal concept of Mid cores, things are either big or little. Users can tweak our algorithm to categorise cores as they so wish (https://docs.unity3d.com/6000.0/Documentation/Manual/android-thread-configuration.html). The risk is that processor intensive work can be pinned on the wrong core however. Unity is considering how to improve this allocation system however now mid cores are more prevalent.
Steps to reproduce:
1. Open the attached user's project "CoreDetection.zip"
2. Build and deploy to the affected devices
3. Observe the CPU classification in the table on the device
Actual result: Mid-capacity CPU cores are classified as Little
Expected result: Mid-capacity CPU cores are classified as Big
Reproducible with: 6000.0.82f1, 6000.3.23f1, 6000.5.10f1, 6000.6.0b10, 6000.7.0a5
Reproducible with these devices:
Google Pixel 11 Pro (via SauceLabs)
Google Pixel 11 (via SauceLabs)
Not reproducible on these devices:
VLNQA00692, Oppo Find X8 Pro (CPH2659), Android 16, CPU: MediaTek Dimensity 9400 (MT6991), GPU: Mali-G925-Immortalis MC12
VLNQA00661, Samsung Galaxy S26 (SM-S942B) - CPU: Exynos 2600, GPU: Xclipse 960, OS: 16
VLNQA00690, Xiaomi Xiaomi 15T Pro (2506BPN68G), Android 16, CPU: 1x Cortex-X925 @ 3.7GHz 3x Cortex-X4 @ 3.3GHz 4x Cortex-A720 @ 2.4GHz, GPU: Mali-G925-Immortalis MC12
VLNQA00580, Xiaomi Redmi Note 8 (M1908C3JGG), Android 11, CPU: Mediatek MT6769Z Helio G85 (12nm), GPU: Mali-G52
VLNQA00615, Samsung SM-S906B (SM-S906B), Android 13, CPU: Exynos 2200, GPU: Ltd.
N/A, Vivo - (V2183A), Android 12, CPU: NOT FOUND, GPU: Mali-G710 MC10
VLNQA00010, Samsung SM-G950U (SM-G950U), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
Testing Environment: Windows 11
Not reproducible on: no other environment tested
Notes:
-Likely also affects Dimensity 9500 devices (X300 series, OPPO Find X9 series, Xiaomi 17T Pro, Galaxy Tab S12 Ultra)
-Suggestion: if only one core would be classified as big, also classify the next-highest-capacity cluster as big; adjust the threshold only when a single core would otherwise be classified as big
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