Report 📊

Summary

The analysis of the Gradle build performance data reveals that the transition from variant A (Gradle 9.2.0) to variant B (Gradle 9.2.1) shows a slight increase in overall build time, with the mean build time increasing by approximately 3 seconds (0.57%). Configuration times are also slightly higher in variant B by about 0.64%. In terms of task execution, the most time-consuming tasks across both variants include :build-logic:convention:compileKotlin, :core:account:kspDebugKotlin, and :core:analytics:kspDebugKotlin, with variant B generally showing a marginal increase in execution times.

CPU and memory usage across all processes and specifically for the build processes show no significant change, maintaining near-maximum CPU usage and similar memory footprints in both variants. The garbage collection metrics indicate a minor decrease in total collections in variant B, suggesting a slight improvement in memory management efficiency.

Detailed Report

1. Build Time Comparison

  • Overall Build Time:

    • Mean: 532.014s for variant A vs. 535.048s for variant B (increase by 3.034s, 0.57%)
    • P50: 527.178s for variant A vs. 532.912s for variant B (increase by 5.734s)
    • P90: 551.269s for variant A vs. 571.194s for variant B (increase by 19.925s)

  • Configuration Time:

    • Mean: 64.141s for variant A vs. 64.557s for variant B (increase by 0.416s, 0.64%)
    • P50: 62.350s for variant A vs. 63.968s for variant B (increase by 1.618s)
    • P90: 76.219s for variant A vs. 71.898s for variant B (decrease by 4.321s)

2. Task Type Differences

  • Top 3 Time-Consuming Tasks:
    • :build-logic:convention:compileKotlin: 6.777s in variant A vs. 6.923s in variant B
    • :core:account:kspDebugKotlin: 6.949s in variant A vs. 6.940s in variant B
    • :core:analytics:kspDebugKotlin: 6.312s in variant A vs. 6.291s in variant B

3. Statistical Patterns

  • Notable timing variations are observed in :build-logic:convention:compileKotlin and :app:app:mergeExtDexDebug, with the latter showing an increase in P90 from 9.902s to 10.475s.

4. CPU & Memory Usage Analysis

  • CPU Usage:

    • All processes: Maxed at 100% for both variants.
    • Build process: 96.4% for variant A vs. 96.466% for variant B.
    • Build child processes: 95.033% for variant A vs. 95.167% for variant B.

  • Memory Usage:

    • All processes: Max 11.35 GB for variant A vs. 11.32 GB for variant B.
    • Build processes: Max 5.66 GB for variant A vs. 5.69 GB for variant B.
    • Build child processes: Max 4.76 GB for variant A vs. 4.7 GB for variant B.

5. Garbage Collection Analysis

  • Total GC collections: 167 for variant A vs. 165 for variant B, indicating a minor improvement in garbage collection efficiency in variant B.

6. Summary

The transition to Gradle 9.2.1 shows a marginal increase in build and configuration times, with a slight improvement in garbage collection efficiency. CPU and memory usage remain high and consistent, indicating robust resource utilization during builds.