Report 📊

Summary

The analysis of the Gradle build performance data reveals modest differences between the two variants, varianta_agp_9_0_0_beta01 and variantb_agp_9_0_0_beta01_no_builtInKotlin. The overall build time for varianta averaged 560.768 seconds, slightly higher than variantb at 555.408 seconds, showing a minor improvement of about 0.96%. Configuration times were also close, with varianta averaging 56.552 seconds compared to variantb at 57.775 seconds. Notably, variantb shows a slight increase in configuration time by about 2.16%.

In terms of resource usage, variantb consistently used less memory across all processes, with a maximum of 11.71 GB compared to varianta’s 12.82 GB. CPU usage was nearly identical for both variants, maxing out at 100% for overall processes and hovering around 97% for the main build process.

The most time-consuming tasks across both variants included :core:cart:kspDebugKotlin, :core:contact:kspDebugKotlin, and :core:comment:kspDebugKotlin, with varianta generally taking slightly longer to execute these tasks.

Detailed Report

1. Build Time Comparison

  • Overall Build Time:

    • Mean: varianta 560.768s vs. variantb 555.408s (0.96% faster in variantb)
    • P50: varianta 554.198s vs. variantb 551.645s
    • P90: varianta 583.428s vs. variantb 585.019s

  • Configuration Time:

    • Mean: varianta 56.552s vs. variantb 57.775s (2.16% slower in variantb)
    • P50: varianta 53.009s vs. variantb 56.424s
    • P90: varianta 69.263s vs. variantb 67.221s

2. Task Type Differences

  • Top Time-Consuming Tasks:
    • "org.jetbrains.kotlin.gradle.tasks.KotlinCompile": varianta mean 2.067s vs. variantb mean 2.036s
    • "com.google.devtools.ksp.gradle.KspAATask": varianta mean 3.501s vs. variantb mean 3.474s
    • "com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask": varianta mean 2.172s vs. variantb mean 2.134s

3. Statistical Patterns

  • Tasks with notable timing variations include "com.android.build.gradle.internal.tasks.DexMergingTask" and "com.android.build.gradle.internal.tasks.DexArchiveBuilderTask", showing slight improvements in variantb.

4. CPU & Memory Usage Analysis

  • CPU Usage:

    • All processes: Max 100% for both variants.
    • Build process: varianta max 97.02% vs. variantb max 97.06%.
    • Build child processes: varianta max 93.58% vs. variantb max 94.26%.

  • Memory Usage:

    • All processes: varianta max 12.82 GB vs. variantb max 11.71 GB.
    • Build process: varianta max 8.31 GB vs. variantb max 7.43 GB.
    • Build child processes: varianta max 3.59 GB vs. variantb max 3.36 GB.

5. Garbage Collection Analysis

  • Gradle Process GC Time: varianta mean 0.53 vs. variantb mean 0.54.
  • Kotlin Process GC Time: varianta mean 0.20 vs. variantb mean 0.21.

The data suggests that while variantb offers slight improvements in build time and memory usage, the differences are relatively minor, indicating that both variants are optimized similarly with only marginal efficiency gains in variantb.