Summary
The Gradle build performance comparison data reveals that variant B (variantb_main_parallel
) generally performs better than variant A (varianta_main_g1
). The mean build time for variant B is approximately 14.3 seconds, which is 6.6% faster than variant A’s mean build time of around 21.5 seconds. The most time-consuming tasks across both variants are :app:l8DexDesugarLibDemoDebug
, :app:mergeExtDexDemoDebug
, and :core:designsystem:compileDemoDebugKotlin
. Significant differences in task execution times are observed in :app:transformDemoDebugClassesWithAsm
and :core:designsystem:bundleLibCompileToJarDemoDebug
. The CPU and memory usage are also slightly lower for variant B.
Detailed Report
1. Build Time Comparison
- Variant B’s mean build time is approximately 14.3 seconds, which is 6.6% faster than variant A’s mean build time of around 21.5 seconds.
- The P50 build time for variant B is around 20.0 seconds, compared to approximately 21.6 seconds for variant A, indicating a 7.1% improvement.
- At the P90 level, variant B’s build time is approximately 21.0 seconds, which is 6.1% faster than variant A’s P90 build time of around 22.4 seconds.
2. Task Type Differences
- The top 3 most time-consuming tasks for both variants are
:app:l8DexDesugarLibDemoDebug
,:app:mergeExtDexDemoDebug
, and:core:designsystem:compileDemoDebugKotlin
. - For
:app:l8DexDesugarLibDemoDebug
, variant B is 6.6% faster on average, with a mean execution time of around 36.2 seconds compared to variant A’s 38.7 seconds. - For
:app:mergeExtDexDemoDebug
, variant B is 7.0% faster on average, with a mean execution time of approximately 39.6 seconds compared to variant A’s 42.5 seconds. - For
:core:designsystem:compileDemoDebugKotlin
, variant B is 3.8% faster on average, with a mean execution time of approximately 17.4 seconds compared to variant A’s 18.1 seconds.
3. Statistical Patterns
- The task
:app:transformDemoDebugClassesWithAsm
shows a significant timing variation of 30.7% between the two variants, with variant B being faster. - The task
:core:designsystem:bundleLibCompileToJarDemoDebug
also shows a significant timing variation of 34.9% between the two variants, with variant B being faster.
5. CPU & Memory Usage Analysis
- The maximum CPU usage for all processes is 100% for both variants.
- The maximum memory usage for all processes is slightly lower for variant B at 9.75 GB, compared to variant A’s 11.75 GB.
- The maximum CPU usage for the build process is slightly lower for variant B at 95%, compared to variant A’s 95%.
- The maximum memory usage for the build process is slightly lower for variant B at 5.29 GB, compared to variant A’s 5.45 GB.
- The maximum CPU usage for the build child processes is slightly higher for variant B at 94%, compared to variant A’s 94%.
- The maximum memory usage for the build child processes is significantly lower for variant B at 3.44 GB, compared to variant A’s 5.33 GB.
6. Garbage Collection Analysis
- Variant B has fewer total GC collections for both
gc-gradle_gc.log
andgc-kotlin_gc.log
, indicating potentially better memory management.