Report 📊

Summary

In this build performance comparison between varianta_baseline and variantb_kotlin-2.4.10, we observed a slight increase in overall build time for variantb_kotlin-2.4.10 with a mean increase of about 4.83 seconds (1.7% increase). Configuration times also increased by approximately 1 second (2.4% increase) in the newer variant. The task execution times showed mixed results, with some tasks like :app:app:mergeDebugJavaResource and :app:app:hiltJavaCompileDebug showing improvements in variantb_kotlin-2.4.10, whereas others like :app:app:mergeLibDexDebug and :app:app:mergeExtDexDebug had slightly increased times. CPU and memory usage were relatively stable across both variants with no significant changes observed.

Detailed Report

1. Build Time Comparison

  • Overall Build Time:

    • Mean: varianta_baseline 284.826s vs variantb_kotlin-2.4.10 289.659s (1.7% increase)
    • P50: varianta_baseline 287.720s vs variantb_kotlin-2.4.10 289.488s
    • P90: varianta_baseline 309.706s vs variantb_kotlin-2.4.10 307.925s

  • Configuration Time:

    • Mean: varianta_baseline 39.371s vs variantb_kotlin-2.4.10 40.329s (2.4% increase)
    • P50: varianta_baseline 39.848s vs variantb_kotlin-2.4.10 40.699s
    • P90: varianta_baseline 42.496s vs variantb_kotlin-2.4.10 45.402s

2. Task Type Differences

  • Top 3 most time-consuming tasks for varianta_baseline:

    • :core:checkout:compileDebugKotlin: 14.688s
    • :core:contact:compileDebugKotlin: 14.715s
    • :core:cart:compileDebugKotlin: 15.134s

  • Comparison in variantb_kotlin-2.4.10:

    • :core:checkout:compileDebugKotlin: 14.914s (1.5% increase)
    • :core:contact:compileDebugKotlin: 14.951s (1.6% increase)
    • :core:cart:compileDebugKotlin: 15.256s (0.8% increase)

3. Statistical Patterns

  • Tasks with notable timing variations:
    • :app:app:hiltJavaCompileDebug showed a significant decrease from 4.130s to 3.698s in variantb_kotlin-2.4.10 (10.4% decrease).
    • :app:app:mergeExtDexDebug increased from 14.409s to 14.643s (1.6% increase).

5. CPU & Memory Usage Analysis

  • CPU Usage:

    • All processes: Both variants peaked at 100%.
    • Build process: varianta_baseline 95.43% vs variantb_kotlin-2.4.10 95.37%.
    • Build child processes: varianta_baseline 92.77% vs variantb_kotlin-2.4.10 92.93%.

  • Memory Usage:

    • All processes: varianta_baseline maxed at 8.86 GB vs variantb_kotlin-2.4.10 at 8.93 GB.
    • Build process: varianta_baseline 4.05 GB vs variantb_kotlin-2.4.10 4.08 GB.
    • Build child processes: varianta_baseline 3.72 GB vs variantb_kotlin-2.4.10 3.75 GB.

This analysis highlights the nuanced differences in build performance between the two variants, with minor increases in build and configuration times in the newer Kotlin version, alongside a generally stable resource usage profile.