Measuring CoreGraphics performance on iOS with FPS

Question

Is there any canonical way to measure the performance of a CATiledLayer on iOS? In opengl land, it's pretty straightforward to track the FPS, is there any similar trick with UIScrollViews and CATiledLayers?

For context, we're tweaking the images going into a CATiledLayer and noticing severe differences in the zooming FPS and panning FPS with the UIScrollView. It's subjective but obvious and I was hoping there was a way to measure this so we can stop saying "wow, this seems a lot faster".

Answer 1

You can profile your app with Instrument's Core Animation tool. It will give you the FPS reading.

Note that this is only available on device and not on simulator.