Gear VR S6 Android 5.1.1 vs 6.0.1 - performance drop - WaitForGPU/vsync issue
Hi! We are developing VR game for Gear VR (and Rift later on). Recently we spotted performance drop from stable 60 fps down to 30. Further search showed up it's due to abnormally high WaitForGPU and that it's happening only on Android 6.0.1 (we have to S6 phones and one has updated to Marshmallow while the other did not). Is something broke in Samsung's Android itself? Drivers? Is it on Unity? Oculus utilities? How even process further such issue? Image below shows profiler running. At first on updated S6, then on 5.1.1. S6. Build is exactly the same, all Oculus software on phones updated. Still - it's broken and v-sync part goes mad on newer version. Also - we have only 19 draw calls and all assets with broad margin to recommended for mobile VR.
