Kotlin 2.4.20 vs 2.4.10

The analysis of the Gradle build performance data reveals a noticeable increase in build times when comparing the baseline variant (varianta_baseline) to the updated Kotlin version (variantb_kotlin-2.4.20). Specifically, the overall build time increased by approximately 13.7 seconds (5.5%) from an average of 250.6 seconds in the baseline to 264.3 seconds in the Kotlin 2.4.20 variant. Configuration times also saw a slight increase. The most time-consuming tasks across both variants include Kotlin compilation and various Android build tasks, with significant increases observed particularly in Kotlin compilation tasks in the updated variant. Memory usage saw a slight increase in the updated variant, particularly in build child processes, which aligns with the observed increases in task execution times.

AGP 9.4.0 vs 9.3.2

The performance comparison between varianta_baseline and variantb_agp-9.4.0 reveals marginal differences in build times and task execution times. The overall build time for variantb_agp-9.4.0 is slightly higher by approximately 0.3 seconds (0.3% increase) compared to varianta_baseline. Configuration times are nearly identical, with variantb_agp-9.4.0 being marginally faster by about 0.45 seconds (1% decrease). Notable task differences include the GlobalSyntheticsGeneratorTask, which shows a significant increase in execution time in variantb_agp-9.4.0 by about 0.2 seconds (3.5% increase). CPU and memory usage across all processes and specifically for the build processes are closely matched between the two variants, with no significant deviations observed.

Gradle 9.7.1 vs 9.7.0

The performance comparison between varianta_baseline and variantb_gradle-9.7.1 reveals a slight improvement in build times with the newer Gradle version. The overall build time decreased by approximately 8.4 seconds (3.2%) from a mean of 261.671 seconds in the baseline to 253.267 seconds in Gradle 9.7.1. Configuration times also saw a reduction, dropping by about 3 seconds (6.4%) from a mean of 47.111 seconds to 44.089 seconds. The most time-consuming tasks across both variants include com.android.build.gradle.internal.tasks.DexMergingTask, :build-logic:convention:compileKotlin, and :core:cart:compileDebugKotlin, with the newer variant generally showing slight improvements in execution times. CPU and memory usage remained largely consistent between the two variants, with no significant changes observed.

AGP 9.3.2 vs 9.3.1

The analysis of the Gradle build performance data reveals that the transition from varianta_baseline to variantb_agp-9.3.2 resulted in an overall increase in build times. Specifically, the mean build time increased by approximately 3.7% (from 249.035 seconds to 258.145 seconds), with the P90 build time showing a more pronounced increase of 3.8%. Configuration times also saw a rise, particularly at the P90 metric, which escalated by 23.6%. Among the tasks, com.android.build.gradle.internal.tasks.GlobalSyntheticsGeneratorTask and com.android.build.gradle.internal.tasks.DexMergingTask showed notable increases in execution time, suggesting areas where performance tuning could be beneficial. CPU and memory usage metrics remained relatively stable across variants, with minor fluctuations observed in the memory usage of build processes.

Gradle 9.7.0 vs 9.6.1

The performance comparison between varianta_baseline and variantb_gradle-9.7.0 reveals several key insights. The overall build time for variantb_gradle-9.7.0 is slightly shorter than varianta_baseline, with a mean reduction of 5.609 seconds (1.94% faster). However, the configuration time in variantb_gradle-9.7.0 has increased, particularly at the P90 level, showing a longer duration by 4.21 seconds (6.24% slower). Notably, task execution times such as :app:app:mergeExtDexDebug and :app:app:hiltJavaCompileDebug have seen improvements in variantb_gradle-9.7.0, suggesting more efficient handling of resource-intensive tasks. CPU and memory usage across all processes remain high and closely matched between the variants, indicating consistent resource demands.

AGP 9.3.1 vs 9.3.0

The analysis of the Gradle build performance data reveals that the transition from varianta_baseline to variantb_agp-9.3.1 shows a slight increase in overall build time by about 1.57 seconds (0.6% increase). The configuration time also increased by 1.1 seconds (2.8% increase). Notably, the :app:app:mergeExtDexDebug task remains the most time-consuming across both variants, with a minimal increase in execution time in the newer variant. CPU and memory usage metrics for all processes and specifically for the build processes show very minor differences, indicating no significant change in resource consumption between the two variants.

AGP 9.3.0 vs 9.2.1

The performance comparison between varianta_baseline and variantb_agp-9.3.0 shows minor differences in build times and task execution times. The overall build time for variantb_agp-9.3.0 is slightly higher by about 0.14% (365ms difference). Configuration time also increased by about 3.5% (1.4 seconds difference) in variantb_agp-9.3.0. Notably, the :app:app:kspDebugKotlin task showed a significant increase in execution time by approximately 10%, indicating a potential area for optimization in variantb_agp-9.3.0. Memory usage is slightly higher in variantb_agp-9.3.0 with a peak of 9.66 GB compared to 9.22 GB in varianta_baseline. CPU usage remains maximized at 100% for all processes in both variants.

Kotlin 2.4.10 vs 2.4.0

In this build performance comparison between varianta_baseline and variantb_kotlin-2.4.10, we observed a slight increase in overall build time for variantb_kotlin-2.4.10 with a mean increase of about 4.83 seconds (1.7% increase). Configuration times also increased by approximately 1 second (2.4% increase) in the newer variant. The task execution times showed mixed results, with some tasks like :app:app:mergeDebugJavaResource and :app:app:hiltJavaCompileDebug showing improvements in variantb_kotlin-2.4.10, whereas others like :app:app:mergeLibDexDebug and :app:app:mergeExtDexDebug had slightly increased times. CPU and memory usage were relatively stable across both variants with no significant changes observed.

Gradle 9.6.1 vs 9.5.1

The analysis of the Gradle build performance between varianta_baseline and variantb_gradle-9.6.1 reveals several key findings. The overall build time increased from 267.3 seconds in varianta_baseline to 280.0 seconds in variantb_gradle-9.6.1, marking a 4.8% increase. Configuration time, however, saw a decrease from 40.8 seconds to 39.2 seconds, a reduction of approximately 4.0%. Task execution times varied, with significant increases observed in tasks like :core:cart:compileDebugKotlin, which jumped from 8.7 seconds to 14.8 seconds (69.6% increase). Memory usage also increased slightly in variantb_gradle-9.6.1 with a peak of 8.83 GB compared to 8.45 GB in varianta_baseline. CPU usage remained maximized at 100% for all processes in both variants.

Gradle 9.6.0 vs 9.5.1

The analysis of the Gradle build performance data reveals a slight increase in overall build time when comparing the baseline variant (varianta_baseline) to the variantb_gradle-9.6.0. Specifically, the mean build time increased by approximately 3.6 seconds (1.3% increase), with the P90 time showing a more significant increase of 11.5 seconds (4.0% increase). Notably, the configuration times slightly decreased in the new variant by about 0.5 seconds. In terms of resource usage, there was a noticeable increase in memory consumption across all processes, with the maximum memory usage rising from 8.35 GB to 9.11 GB (9.1% increase). CPU usage remained maximized at 100% for all processes in both variants.

Kotlin 2.4.0 vs 2.3.21

The performance comparison between varianta_baseline and variantb_kotlin-2.4.0 reveals notable differences in build times and task execution. The overall build time for variantb_kotlin-2.4.0 is slightly longer, with a mean increase of about 8.4 seconds (3.1%). Configuration times also show a slight increase in the Kotlin 2.4.0 variant by approximately 1.3 seconds (3.4%). Among the tasks, com.android.build.gradle.internal.tasks.DexMergingTask and :core:checkout:compileDebugKotlin are the most time-consuming, with noticeable increases in the Kotlin variant. CPU and memory usage across all processes are relatively stable with minor fluctuations, indicating efficient resource management in both variants.

JDK 26 with UseCompactObjectHeaders

The performance comparison between varianta_main and variantb_UseCompactObjectHeaders reveals minor differences in build and configuration times, with variantb_UseCompactObjectHeaders showing a slight improvement in build time by approximately 0.28% (around 1.8 seconds faster). The configuration time is nearly identical between the two variants. Notably, the top three most time-consuming tasks across both variants include :app:app:mergeExtDexDebug, :app:app:hiltJavaCompileDebug, and :app:app:compileDebugKotlin, with :app:app:mergeExtDexDebug being the longest at over 18 seconds for both variants. CPU and memory usage are almost identical, with maximum values reaching up to 100% CPU and around 13.87 GB of memory for all processes. The total garbage collection counts are slightly lower in variantb_UseCompactObjectHeaders, suggesting marginally better memory management.

Gradle 9.6.0-rc-1 vs 9.5.1

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.

Kotlin 2.3.21 vs 2.3.20

The performance comparison between varianta_baseline and variantb_kotlin-2.3.21 reveals several key differences. The overall build time for variantb_kotlin-2.3.21 is slightly higher, with a mean increase of about 4.4 seconds (1.66% longer). Notably, the configuration time has improved in variantb_kotlin-2.3.21 by approximately 1.8 seconds (4.4% faster). In task-specific performance, the :core:cart:compileDebugKotlin task showed a significant increase in execution time in variantb_kotlin-2.3.21, taking about 5.6 seconds longer on average, which is a 65% increase. Memory usage also saw a slight increase in variantb_kotlin-2.3.21 across all metrics, with a notable increase in build child processes memory by 0.46 GB (14.5% higher).

Gradle 9.5.1 vs 9.5.0

The analysis of the Gradle build performance data reveals that the transition from varianta_baseline to variantb_gradle-9.5.1 has led to a slight reduction in overall build time by approximately 9.5 seconds (3.57%). However, the configuration time has increased slightly by about 1.046 seconds (2.69%). Notably, the task :app:app:parseDebugLocalResources showed a significant reduction in execution time, decreasing by about 0.642 seconds (31.41%). Memory usage for all processes decreased from 8.61 GB to 8.31 GB, a reduction of about 3.48%. CPU usage remained maximally utilized at 100% for all processes in both variants.

AGP 9.2.1 vs 9.2.0

The analysis of the Gradle build performance data between varianta_baseline and variantb_agp-9.2.1 reveals several key insights. The overall build time for variantb_agp-9.2.1 increased slightly by about 2.77 seconds (1.07%) compared to varianta_baseline. Configuration times also saw a notable increase in variantb_agp-9.2.1 by about 6.54 seconds (16.39%). Among the most time-consuming tasks, :core:cart:compileDebugKotlin and :build-logic:convention:compileKotlin exhibited the most significant increases in execution times. CPU and memory usage across all processes remained at their maximum capacity for both variants, indicating a high level of resource utilization during the builds.

AGP 9.2.0 vs 9.1.0

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.

Gradle 9.5.0 vs 9.4.1

The analysis of the Gradle build performance data reveals a slight increase in build time in variantb_9.5.0 compared to varianta_9.4.1, with the mean build time increasing by approximately 11.4 seconds (2%). The configuration time also saw an increase, with the mean time rising by about 2 seconds (3.2%). Notably, the most time-consuming tasks across both variants include ‘KotlinCompile’, ‘KspAATask’, and ‘LinkApplicationAndroidResourcesTask’, with minor increases in execution times in variantb_9.5.0. In terms of resource usage, both CPU and memory usage for all processes and specifically for the build processes show very close figures between the two variants, with no significant deviations. The total garbage collection (GC) counts are nearly identical, indicating stable memory management across builds.