UniMetrics

Native plugin for Unity using Swift to monitor CPU, Ram and GPU usage.

Dependencies

• Unity 2022.3.21.f
• TextMeshPro
• Xcode tools

How to build Native plugin project

Native plugin is located under Native folder. There is a xcodeproj that you can use but for building it's recommended to follow the command process.

• Locate folder with your favourite terminal app.
• First build iphoneos app

xcodebuild archive -scheme UniMetricsSwift -archivePath "./build/UniMetricsSwift-iOS" -sdk iphoneos SKIP_INSTALL=NO BUILD_LIBRARY_FOR_DISTRIBUTION=YES

• Then build iphoneSimulator

xcodebuild archive -scheme UniMetricsSwift -archivePath "./build/UniMetricsSwift-Simulator" -sdk iphonesimulator SKIP_INSTALL=NO BUILD_LIBRARY_FOR_DISTRIBUTION=YES

• Later, build the XCFramework

xcodebuild -create-xcframework -framework ./build/UniMetricsSwift-iOS.xcarchive/Products/Library/Frameworks/UniMetricsSwift.framework -framework ./build/UniMetricsSwift-Simulator.xcarchive/Products/Library/Frameworks/UniMetricsSwift.framework -output ./build/UniMetricsSwift.xcframework

This will output UniMetricsSwift.xcframework in the build folder

• Finally move this framework into Unity under Assets/Plugins/iOS folder

How to build Unity project

Cloning directly gives access to the Unity project.

• Select iOS as target on platform. File > Build Settings > Switch platform to iOS.

This project supports both Simulator and Device build. You can select either in Player settings under Target SDK

• Select Build Settings > Build > select folder where Xcode project will be located.
• Since the native plugin it's an XCFramework build process will automatically place it into the XCode project. No need to manually add it.

Caveats

• GPU tracking info it's an obscure and hard part of the API to be retrieved. Apple does not offer a solution for it and there are many non-working things out there so I prefer to use MetricKit to retrieve certain data but this is not intended to be working as I expect here. Also, retriving thermals can give partial information about how the device is behaving.

Demo:

(Native iphone 15)

(Simulator)