I tested that Kotlin/Native has poor performance o...

# compose-ios

[Gavin Novate]

I tested that Kotlin/Native has poor performance on iOS. For example, the most commonly used Matrix class needs to call the floatArrayOf function to construct it, but this function takes ten times as long on iOS as on Android.

Will the performance problems of Kotlin/Native cause Compose to not always get a better experience on iOS?

Test Code

val time = measureTime {
        repeat(10000) {
            floatArray = floatArrayOf(
                1f, 0f, 0f, 0f,
                0f, 1f, 0f, 0f,
                0f, 0f, 1f, 0f,
                0f, 0f, 0f, 1f
            )
        }
    }
    println("timeTest = $time")

[Dima Avdeev]

Thanks for the research!
We will invest in this direction.
We communicate with the Kotlin Native team about performance issues in Compose on UIKit target.

[Gavin Novate]

Thanks, I'm really looking forward to having a smooth experience with Compose on iOS.

[Gavin Novate]

https://app.slack.com/client/T09229ZC6/C3SGXARS6/thread/C3SGXARS6-1670313053.796279

Hello, regarding this issue, you can follow the discussion here, it should be helpful.

[Arkadii Ivanov]

Perhaps the issue I have reported a while ago might be related - https://youtrack.jetbrains.com/issue/KT-39160/Slow-allocations-in-Kotlin-Native-LinuxX64-compared-to-JVM