In this chapter you learned how to use a few tools for testing the application, but you have already used one that also has some features related to testing. It is the emulator, which can show a few numbers next to the edge. They are named frame rate counters and are shown in the following screenshot:

The first two values represent the number of frames per second for updating the screen (the first one) and running of the UI thread (the other). Apart from them, you can monitor some additional results, including the texture memory usage.