Report 📊

Summary

The performance comparison between varianta_baseline and variantb_kotlin-2.4.0 reveals notable differences in build times and task execution. The overall build time for variantb_kotlin-2.4.0 is slightly longer, with a mean increase of about 8.4 seconds (3.1%). Configuration times also show a slight increase in the Kotlin 2.4.0 variant by approximately 1.3 seconds (3.4%). Among the tasks, com.android.build.gradle.internal.tasks.DexMergingTask and :core:checkout:compileDebugKotlin are the most time-consuming, with noticeable increases in the Kotlin variant. CPU and memory usage across all processes are relatively stable with minor fluctuations, indicating efficient resource management in both variants.

Detailed Report

1. Build Time Comparison

  • Overall Build Time:

    • Mean: 267.3s for varianta_baseline vs. 275.7s for variantb_kotlin-2.4.0 (increase of 8.4s or 3.1%)
    • P50: 270.7s for varianta_baseline vs. 274.7s for variantb_kotlin-2.4.0 (increase of 4s)
    • P90: 286.3s for varianta_baseline vs. 287.0s for variantb_kotlin-2.4.0 (increase of 0.7s)

  • Configuration Time:

    • Mean: 37.9s for varianta_baseline vs. 39.2s for variantb_kotlin-2.4.0 (increase of 1.3s or 3.4%)
    • P50: 37.9s for varianta_baseline vs. 38.2s for variantb_kotlin-2.4.0 (increase of 0.4s)
    • P90: 42.7s for varianta_baseline vs. 40.7s for variantb_kotlin-2.4.0 (decrease of 2s)

2. Task Type Differences

  • Top Time-Consuming Tasks:
    • "com.android.build.gradle.internal.tasks.DexMergingTask": Mean time increased from 4919ms to 5167ms in variantb_kotlin-2.4.0.
    • "org.jetbrains.kotlin.gradle.tasks.KotlinCompile": Mean time increased from 3445ms to 3563ms in variantb_kotlin-2.4.0.
    • "com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask": Mean time decreased from 2126ms to 2064ms in variantb_kotlin-2.4.0.

3. Statistical Patterns

  • Tasks with notable timing variations include "com.android.build.gradle.internal.tasks.DexMergingTask" and "org.jetbrains.kotlin.gradle.tasks.KotlinCompile", both showing more than 10% increase in execution time in variantb_kotlin-2.4.0.

5. CPU & Memory Usage Analysis

  • CPU Usage:

    • All processes: Max CPU usage is capped at 100% for both variants.
    • Build process: Slight decrease in max CPU usage from 95.77% in varianta_baseline to 95.57% in variantb_kotlin-2.4.0.
    • Build child processes: Stable at around 93% for both variants.

  • Memory Usage:

    • All processes: Max memory usage slightly decreased from 8.94GB in varianta_baseline to 8.81GB in variantb_kotlin-2.4.0.
    • Build process: Decrease from 4.17GB to 4.08GB in variantb_kotlin-2.4.0.
    • Build child processes: Decrease from 3.74GB to 3.68GB in variantb_kotlin-2.4.0.

This analysis indicates that while the Kotlin 2.4.0 variant introduces slight increases in build and configuration times, it maintains comparable resource efficiency, suggesting a balanced trade-off between performance and new features or improvements in the Kotlin update.