compose-jb/examples/runtime-measurements

This example project can be built and run for desktop, web and macos.

• To build this project for all 3 targets, one need to have compose-mpp published to their mavenLocal: https://github.com/JetBrains/compose-jb/blob/master/compose/README.md#multiplatform-build

• Using compose version 1.0.1 (already published and available), this project can be built for js and jvm.

Available experiments:

var numberOfItems = 1000
// Experiment1.kt
addNComposableItems(numberOfItems)

// Experiment2.kt
removeAllItems(preAddedItemsCount = numberOfItems)

// Experiment3.kt
updateEveryXth(numberOfItems, xth = 2, repeatUpdate = 20)

The experiments can be run as tests in commonTest: ./gradlew jsTest jvmTest macosX64Test or macosArm64Test

It should print results into output.

MacOs:

For MacOs it makes sense to run it as an app in production mode: ./gradlew runReleaseExecutableMacosX64 or ./gradlew runReleaseExecutableArm64 In production, it shows much better results.

See macosMain/Main.kt to choose what experiment to run.

Browser (if running the app (jsMain/Main.kt) in a browser)

We have modified webpack.config.d to make the app run better in development mode:

config.devtool = undefined;  // default is `eval-source-map`
config.mode = 'none'; // default is `development`

This prevents kotlin source maps being added into the bundle. The default config options add a huge overhead and app's performance is much worse.