Report 📊

Summary

The analysis of the Gradle build performance data between two variants, varianta_9.5.1 and variantb_9.6.0-rc-1, reveals several key insights. The overall build time has decreased from 516.886 seconds in varianta_9.5.1 to 499.350 seconds in variantb_9.6.0-rc-1, marking a 3.4% improvement. Configuration time also saw a reduction, decreasing by about 5.1%. The most time-consuming tasks across both variants include :app:app:mergeExtDexDebug, :app:app:hiltJavaCompileDebug, and :app:app:compileDebugKotlin, with variantb_9.6.0-rc-1 generally showing better performance in these areas.

CPU and memory usage metrics indicate that both variants are pushing the limits with 100% CPU usage observed at peak times. Memory usage peaked at 10.34 GB in variantb_9.6.0-rc-1 compared to 10.09 GB in varianta_9.5.1. The garbage collection logs show a slight decrease in total collections from 197 in varianta_9.5.1 to 196 in variantb_9.6.0-rc-1.

Detailed Report

1. Build Time Comparison

  • Overall Build Time:

    • varianta_9.5.1: Mean = 516.886s, P50 = 513.343s, P90 = 545.133s
    • variantb_9.6.0-rc-1: Mean = 499.350s, P50 = 505.648s, P90 = 532.651s
    • Percentage decrease from varianta_9.5.1 to variantb_9.6.0-rc-1: Mean = 3.4%, P50 = 1.5%, P90 = 2.3%

  • Configuration Time:

    • varianta_9.5.1: Mean = 57.099s, P50 = 56.822s, P90 = 61.338s
    • variantb_9.6.0-rc-1: Mean = 54.210s, P50 = 53.753s, P90 = 60.276s
    • Percentage decrease: Mean = 5.1%, P50 = 5.4%, P90 = 1.7%

2. Task Type Differences

  • Top time-consuming tasks:
    • "mergeExtDexDebug": Mean time decreased from 18.758s in varianta_9.5.1 to 18.086s in variantb_9.6.0-rc-1.
    • "hiltJavaCompileDebug": Mean time decreased from 7.183s to 6.754s.
    • "compileDebugKotlin": Mean time decreased from 4.381s to 3.854s.

3. Statistical Patterns

  • Tasks with notable timing variations:
    • "mergeExtDexDebug" and "compileDebugKotlin" showed improvements in all percentile metrics.
    • "hiltJavaCompileDebug" showed a consistent decrease across mean, P50, and P90 times.

4. CPU & Memory Usage Analysis

  • CPU Usage:
    • Both variants hit the maximum of 100% CPU usage.
  • Memory Usage:
    • varianta_9.5.1: Max = 10.09 GB
    • variantb_9.6.0-rc-1: Max = 10.34 GB
    • Increase in peak memory usage by variantb_9.6.0-rc-1 by approximately 2.5%.

5. Garbage Collection Analysis

  • Total GC collections slightly decreased from 197 in varianta_9.5.1 to 196 in variantb_9.6.0-rc-1.

6. Kotlin Build Reports Analysis

  • Improvements observed in several compiler metrics such as "Compiler code analysis" and "Compiler translation to IR".
  • Incremental compilation times improved, with a decrease from 1520.76ms to 1470.20ms in mean times.

This detailed analysis underscores the performance enhancements in the newer variantb_9.6.0-rc-1, particularly in build and configuration times, and compiler efficiency, despite higher peak memory usage.