When measuring "Game Performance" from Instruments in "Deferred" mode with a connected device, I'm seeing huge regions of data go missing. I'm trying to figure out why this might be the case, and what I can do to capture more reliable data.
Ideally I would like to capture 60 seconds of gameplay and analyze the performance, but very often only a fraction of the graph has data. The amount varies wildly, even on a very basic tutorial-level Metal application. Sometimes I'll get the full 60 seconds, other times only 5 seconds (with 55 seconds of empty space), and I'm always running with the same settings.
Any ideas? Is anyone else able to reliably get the full set of data?
**For reference, I'll state that I'm using an iPhone 13 Pro and an iPad Pro 11, so I don't think the devices are too underpowered. I even tested on two different computers and got similar results.
