Kotlin Performance Test: Iterable<T>.map

main.kt

import kotlin.time.Duration
import kotlin.time.measureTime

fun main() {
    val durations = mutableListOf<Duration>()
    repeat(10) {
        val duration = measureTime { (0..1_000_000).map { it + 1 } }
        durations += duration
    }
    println(durations)
    // [53.2ms, 66.2ms, 53.4ms, 14.5ms, 54.1ms, 17.2ms, 80.3ms, 96.9ms, 17.0ms, 35.9ms]
}