GFX.WaitForPresent Causing Major Frame Stuttering

Hey guys, I just recently started working on a project targeting Android/iOS and I have encountered an issue. When profiling I see that GFX.WaitForPresent is being called every couple frames and causing extreme frame stuttering. At first I thought that the scripts were what was causing the issue but I then realized that the same thing was happening in an empty scene. I ran into this problem in Unity 5.3.5 and it still persist in version 5.4.0. Hopefully this issue gets fixed soon so that I can continue working because as of now there isn't much I can do.

 

I also have an Issue with Graphics.PresentAndSync ... I really don't know the reason. If you find any solution, please tell me.

 

we are seeing something remotely similar when saturating the GPU's bandwidth (on PC though). Wild guess; are you leaking GPU resources somewhere?

 

Try to run the profiler with only the game window visible.
In the screenshot you have the scene and the game window.
That could impact the GFX.WaitForPresent.

This discussion could also help : https://forum.unity3d.com/threads/gfx-waitforpresent.211166/