Report 📊

Summary

The analysis of the Gradle build performance data between two variants, varianta_2.2.21 and variantb_2.3.0, reveals subtle differences in build times and task execution. The overall build time for varianta_2.2.21 averaged 569.213 seconds, slightly longer than variantb_2.3.0 at 567.616 seconds, a marginal improvement of about 0.28%. Configuration times also saw a decrease from 54.823 seconds in varianta_2.2.21 to 52.565 seconds in variantb_2.3.0, improving by approximately 4.12%. Notably, the most time-consuming tasks across both variants include :core:account:kspDebugKotlin, :core:analytics:kspDebugKotlin, and :core:alarm:compileDebugKotlin, with minor variations in execution times between the variants. The garbage collection metrics indicate a slight increase in total collections for variantb_2.3.0, suggesting a minor increase in memory management activities.

Detailed Report

1. Build Time Comparison

  • Overall Build Time:

    • Mean: varianta_2.2.21 = 569.213s, variantb_2.3.0 = 567.616s (0.28% faster)
    • P50: varianta_2.2.21 = 569.242s, variantb_2.3.0 = 566.129s
    • P90: varianta_2.2.21 = 596.533s, variantb_2.3.0 = 596.175s

  • Configuration Time:

    • Mean: varianta_2.2.21 = 54.823s, variantb_2.3.0 = 52.565s (4.12% faster)
    • P50: varianta_2.2.21 = 53.071s, variantb_2.3.0 = 50.887s
    • P90: varianta_2.2.21 = 64.737s, variantb_2.3.0 = 62.528s

2. Task Type Differences

  • Top 3 Time-Consuming Tasks:
    • "org.jetbrains.kotlin.gradle.tasks.KotlinCompile": Mean times are 3.479s for varianta_2.2.21 and 3.507s for variantb_2.3.0.
    • "com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask": Mean times are 2.064s for varianta_2.2.21 and 2.044s for variantb_2.3.0.
    • "com.google.devtools.ksp.gradle.KspAATask": Mean times are 4.530s for varianta_2.2.21 and 4.510s for variantb_2.3.0.

3. Statistical Patterns

  • Notable Variations:
    • Tasks like "com.android.build.gradle.internal.tasks.DexMergingTask" and "com.android.build.gradle.internal.tasks.DexArchiveBuilderTask" show minor differences in execution times, suggesting optimizations in variantb_2.3.0.

4. Process State Analysis

  • Kotlin Process State:

    • Slight decrease in garbage collection time from 0.25 in varianta_2.2.21 to 0.24 in variantb_2.3.0.

  • Gradle Process State:

    • Garbage collection time slightly increased from 0.51 in varianta_2.2.21 to 0.52 in variantb_2.3.0.

5. CPU & Memory Usage Analysis

  • Overall System Usage:
    • CPU usage peaked at 100% for both variants.
    • Memory usage slightly decreased from 14.17 GB in varianta_2.2.21 to 14.14 GB in variantb_2.3.0.

6. Garbage Collection Analysis

  • Total GC Collections:
    • Increased from 259 in varianta_2.2.21 to 262 in variantb_2.3.0.

7. Kotlin Build Reports Analysis

  • Compiler Performance Metrics:
    • Code generation lines per second decreased from 1040 in varianta_2.2.21 to 1018 in variantb_2.3.0.
    • Analysis lines per second decreased from 983 in varianta_2.2.21 to 973 in variantb_2.3.0.

This detailed analysis highlights minor performance improvements in build and configuration times in variantb_2.3.0 compared to varianta_2.2.21, with specific tasks showing slight variations in execution times. The increase in garbage collection activities in the newer variant could be an area for further optimization.