Report 📊

Summary

The analysis of the Gradle build performance data reveals notable improvements in build times and resource utilization between the two variants, varianta_9.1.0 and variantb_9.2.0. The overall build time decreased by 4.45% from an average of 588.322 seconds in varianta_9.1.0 to 562.176 seconds in variantb_9.2.0. Configuration times also saw a slight improvement. The most time-consuming tasks such as :app:app:mergeExtDexDebug and :core:analytics:kspDebugKotlin showed significant reductions in execution times, contributing to the overall efficiency. Memory usage and CPU utilization during the build process were slightly better in variantb_9.2.0. Furthermore, Kotlin Build Reports indicate an increase in code generation lines per second, suggesting enhanced compiler performance in the newer variant.

Detailed Report

1. Build Time Comparison

  • Overall Build Time:

    • Mean: Reduced from 588.322s to 562.176s (4.45% decrease).
    • P50: Reduced from 592.534s to 560.925s.
    • P90: Reduced from 619.333s to 593.537s.

  • Configuration Time:

    • Mean: Reduced from 59.942s to 59.527s.
    • P50: Reduced from 61.264s to 59.080s.
    • P90: Reduced from 68.165s to 67.752s.

2. Task Type Differences

  • Top Time-Consuming Tasks:
    • "com.android.build.gradle.internal.tasks.DexMergingTask": Increased from 5541ms to 7325ms mean time.
    • "org.jetbrains.kotlin.gradle.tasks.KotlinCompile": Decreased from 2691ms to 2552ms mean time.
    • "com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask": Increased from 1708ms to 1818ms mean time.

3. Statistical Patterns

  • Notable timing variations were observed in "com.android.build.gradle.internal.tasks.DexMergingTask" with a significant increase in execution time in variantb_9.2.0.
  • "org.jetbrains.kotlin.gradle.tasks.KotlinCompile" and "com.google.devtools.ksp.gradle.KspAATask" showed improvements in execution times across all percentiles.

4. Process State Analysis

  • Kotlin Process State:
    • Slight reduction in garbage collection time from 0.3 to 0.28.
  • Gradle Process State:
    • Slight reduction in garbage collection time from 0.32 to 0.3.

5. CPU & Memory Usage Analysis

  • CPU Usage:
    • Slight increase in CPU usage for the main build process from 96.2% to 96.5%.
  • Memory Usage:
    • Decrease in maximum memory usage from 11.88GB to 11.66GB for all processes.
    • Build process memory usage decreased from 6.66GB to 6.46GB.

6. Garbage Collection Analysis

  • Total GC collections decreased from 225 to 208, indicating improved memory management in variantb_9.2.0.

7. Kotlin Build Reports Analysis

  • Improvements in compiler performance metrics such as code generation lines per second from 1034 to 1084.
  • Reduction in total Gradle task time from 2674.41ms to 2535.17ms.

This comprehensive analysis highlights the efficiency gains in build performance and resource utilization in variantb_9.2.0 compared to varianta_9.1.0, reflecting optimizations in both build configuration and task execution.