I'm using the GPU profiler provided in all Android devices in the Developer options.

Surprisingly, for most grafika activities it does not show any bars. I was expecting it to show a continuous sequence of bars because we're calling several GPU functions (swap buffers, drawArrays).

Show + Capture Acitivity doesn't have any bars, whereas Continuous Capture does and I'm guessing this is because of the flickering [Recording] textview.

Does someone know how to profile the GPU properly?