I am using Metal Debugger / Instruments to profile my game in iPhone.
And I am having problem finding a counter that could profile the "Tiling Phase" for a drawcall.
Counters I got from XCode GPU frame captures are: "GPU Time", "Vertex Stage Time".
I wonder if "Vertex Stage Time" contains both of Tiling phase execution time and Vertex Shader execution time?
As far as I know from Qualcomm GPU, the "Tiling phase" (Called "binning pass" in Qualcomm) is going to shade all vertices once and bin primitives to tiles. And then for each tile, execute VS and PS for primitives in this tile.
I am not sure if Apple GPU is doing the same thing. Could anyone expalin what is "Tiling phase" actually doing and how can I profile this "Tiling phase" in XCode?
Thanks!
My XCode Version is 12.4, and I am using iPhone XS max (IOS14.3)