Measuring the performance of a mobile game before exporting.

dzosek

How to check the performance of my mobile game in godot. Because when I add some effects, or add more objects I am not sure if my game will work well on my phone. then I upload it to my phone and check how many frames it has. Is there any way to check this directly in godot? I know there are options to monitor performance but I don't know how to use them for mobile games.

TwistedTwigleg

I don’t know of any way right off, other than monitoring the time it takes to execute code in the profiler and making sure the execute time (in milliseconds, or ms) doesn’t get too high for the target range of devices you are aiming for the game to be playable on.

I have found that sometimes turning off VSync on desktop, checking how high the FPS is on a known working build, and then comparing that to the latest changes to see what (if any) FPS drop there is can somewhat helpful at times for detecting large potential performance drops. However, testing on the actual device is the most sure way to know how it will perform, at least in my limited experience.

cybereality

While you can do profiling on the PC to get a general idea of performance (like if it gets much worse after adding a feature) you really do have to test on a mobile device, or sometimes multiple devices. Mobile hardware is very different than desktop, and stuff that seems like nothing on a beefy computer can bring a phone to it's knees. For example, post-processing can be super slow, or not even supported on mobile, while it's relatively fast on a desktop. Or shadows can also be problematic. And you might find some older phones/tablets behave differently, which you won't know unless you actually test them.