How to determine some performance budgets in PA

Hi guys,

I use Performance Advisor (PA) to optimize my game. By the way, in PA, I can set performance budgets, but I don't know how to set an appropriate level for some budgets.

For example, for GPU cycles budget case, I can calculate the absolute limit of GPU cost per frame for : GPU top frequency/Frame rate = Maximum GPU cycles per frame.

So what about shader-cycles-budget (Shader cycles per frame) and cpu-cycles-budget (CPU cycles per frame)? I don't know exactly what 'Shader cycles per frame' means, so I can't calculate the value, and mobile processor has multiple multi-core cpu, and the frequency is different.

Anyone know more about this?