Mobile : low performance on some device

Hello


I am making a game and i got excellent performance on some device and very low frame rate on other one. I don’t understand why ?


This is a screenshot of my game



As you can see, there is no complicate mesh, just one texture for the main character, very simple ui. I program by myself the physics and it’s not really complicate.

I think this game should be played on every device !


But this is my test :

• Editor : 55 fps
• Motorola Moto E , android : 60 fps
• iPad mini retina : 60 fps
• JIAYU S3 : 25 fps
• iPad 3 retina : 20 fps

When i profile iPad 3, i got :

• 90% overhead
• 30 drawcalls
• 5000 tri and 8000 vertex

Here the optimisation i have done :

• All image are in a Sprite Packer
• Main character is MarkDynamic()
• No standard material : I replace them by « Mobile/Diffuse» and a custom material very simple to batch the objects
• Test without UI element : the game lags
• …

Here the profiler :





90% overhead
and in the memory i got System.ExecutableAndDlls that take 0.79 GB !

Note that i also got this warning on iOS :

warning: arm64 function not 4-byte aligned: ltmp0 from /Users/rochet/Dangerous Bounce/Dangerous Bounce/Libraries/libiPhone-lib.a(PLCrashAsyncThread_current-5565F35D16E4818B.o)

This is my question :

• What is System.ExecutableAndDlls ? How can i reduce that ?
• AOT Compilation Options can help ?
• What’s wrong in my project ?

I am exhausted because of this problem ! I you have an idea it will be so cool !

Thanks you !