问题
The Xcode->GPU Capture frame->GPU shader profiler can't work, I run the Capture frame, and open the Metal compute shader source code by GPU shader profiler. But I can't see the shader code performance profile like thatGPU shader profiler
回答1:
Set your project's "iOS Deployment Target" to a higher version. I had this issue and in my case it was set to 9.x. When I set it to 11.4 I could see the percentage on source lines.
来源：https://stackoverflow.com/questions/50802533/xcode-gpu-shader-profiler