M57
045932ca8b
* ⚡ Optimize collection creation in Navigation.kt Replaced uses of `.map { ... }.toSet()` with `.mapTo(mutableSetOf()) { ... }` in Navigation.kt. This avoids the creation of intermediate ArrayList objects, saving unnecessary memory allocations. * ⚡ Optimize collection creation in Navigation.kt Replaced uses of `.map { ... }.toSet()` with `.mapTo(mutableSetOf()) { ... }` in Navigation.kt. This avoids the creation of intermediate ArrayList objects, saving unnecessary memory allocations. Fixed ktlint formatting issues causing CI failure.
39 lines
1.0 KiB
Kotlin
39 lines
1.0 KiB
Kotlin
package com.m57.hermescontrol
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import org.junit.Test
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import kotlin.system.measureNanoTime
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class NavigationBenchmarkTest {
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@Test
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fun benchmarkMapToSet() {
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// Simulate ALL_NAV_ITEMS which has 20 items
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val items = (1..20).toList()
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// Warmup
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for (i in 1..10000) {
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val a = items.map { it }.toSet()
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val b = items.mapTo(mutableSetOf()) { it }
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}
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var timeMapToSet: Long = 0
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var timeMapTo: Long = 0
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val iterations = 100000
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for (i in 1..iterations) {
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timeMapToSet +=
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measureNanoTime {
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items.map { it }.toSet()
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}
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timeMapTo +=
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measureNanoTime {
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items.mapTo(mutableSetOf()) { it }
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}
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}
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println("============================")
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println("Baseline (.map.toSet): ${timeMapToSet / iterations} ns/op")
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println("Optimized (.mapTo): ${timeMapTo / iterations} ns/op")
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println("============================")
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}
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}
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