Baseline profile setup

README.md

@@ -40,6 +40,27 @@ Read [this](https://github.com/sadellie/unitto/wiki/Security).
 ## 🤖 Custom ROM developers
 Leave.
 
+## 🤓 Nerds
+
+<details>
+<summary>Benchmarks and Baseline profile</summary>
+
+```
+Pixel 8 - 14
+
+StartupBenchmark_startupPrecompiledWithBaselineProfile
+timeToInitialDisplayMs   min 183.5,   median 219.9,   max 247.3
+
+StartupBenchmark_startupWithoutPreCompilation
+timeToInitialDisplayMs   min 223.6,   median 328.0,   max 663.8
+
+StartupBenchmark_startupWithPartialCompilationAndDisabledBaselineProfile
+timeToInitialDisplayMs   min 264.8,   median 308.0,   max 376.1
+StartupBenchmark_startupFullyPrecompiled
+timeToInitialDisplayMs   min 314.4,   median 336.9,   max 388.3
+```
+</details>
+
 ## 🔎 Additional
 Terms and Conditions: https://sadellie.github.io/unitto/terms
 

app/benchmark-rules.pro

@@ -0,0 +1,6 @@
+# Proguard rules for the `benchmark` build type.
+#
+# Obsfuscation must be disabled for the build variant that generates Baseline Profile, otherwise
+# wrong symbols would be generated. The generated Baseline Profile will be properly applied when generated
+# without obfuscation and your app is being obfuscated.
+-dontobfuscate

app/build.gradle.kts

@@ -24,6 +24,7 @@ plugins {
     id("unitto.android.application.jacoco")
     id("jacoco")
     id("unitto.android.hilt")
+    alias(libs.plugins.baselineprofile)
 }
 
 android {
@@ -73,8 +74,11 @@ android {
         }
         create("benchmark") {
             initWith(buildTypes.getByName("release"))
+            matchingFallbacks.add("release")
             signingConfig = signingConfigs.getByName("debug")
-            matchingFallbacks += listOf("release")
+            // Only use benchmark proguard rules
+            proguardFiles("benchmark-rules.pro")
+            isMinifyEnabled = true
         }
     }
 
@@ -122,6 +126,7 @@ tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach
 
 dependencies {
     implementation(libs.androidx.core.core.ktx)
+    implementation(libs.androidx.profileinstaller.profileinstaller)
     coreLibraryDesugaring(libs.com.android.tools.desugar.jdk.libs)
 
     implementation(libs.androidx.compose.material3)
@@ -144,4 +149,12 @@ dependencies {
     implementation(project(":data:userprefs"))
     implementation(project(":core:ui"))
     implementation(project(":core:base"))
+
+    baselineProfile(project(":benchmark"))
+}
+
+baselineProfile {
+    // Don't build on every iteration of a full assemble.
+    // Instead enable generation directly for the release build variant.
+    automaticGenerationDuringBuild = false
 }

benchmark/build.gradle.kts

@@ -38,8 +38,8 @@ android {
         // for easy local/CI testing.
         create("benchmark") {
             isDebuggable = true
-            signingConfig = getByName("debug").signingConfig
-            matchingFallbacks += listOf("release")
+            signingConfig = signingConfigs.getByName("debug")
+            matchingFallbacks.add("release")
         }
     }
 

benchmark/src/main/java/com/sadellie/unitto/benchmark/StartupBenchmark.kt

@@ -18,6 +18,8 @@
 
 package com.sadellie.unitto.benchmark
 
+import androidx.benchmark.macro.BaselineProfileMode
+import androidx.benchmark.macro.CompilationMode
 import androidx.benchmark.macro.StartupMode
 import androidx.benchmark.macro.StartupTimingMetric
 import androidx.benchmark.macro.junit4.MacrobenchmarkRule
@@ -44,13 +46,32 @@ class StartupBenchmark {
     val benchmarkRule = MacrobenchmarkRule()
 
     @Test
-    fun startup() = benchmarkRule.measureRepeated(
+    fun startupWithoutPreCompilation() = startup(CompilationMode.None())
+
+    @Test
+    fun startupWithPartialCompilationAndDisabledBaselineProfile() = startup(
+        CompilationMode.Partial(baselineProfileMode = BaselineProfileMode.Disable, warmupIterations = 1),
+    )
+
+    @Test
+    fun startupPrecompiledWithBaselineProfile() =
+        startup(CompilationMode.Partial(baselineProfileMode = BaselineProfileMode.Require))
+
+    @Test
+    fun startupFullyPrecompiled() = startup(CompilationMode.Full())
+
+    private fun startup(
+        compilationMode: CompilationMode
+    ) = benchmarkRule.measureRepeated(
         packageName = "com.sadellie.unitto",
         metrics = listOf(StartupTimingMetric()),
-        iterations = 5,
-        startupMode = StartupMode.COLD
-    ) {
+        compilationMode = compilationMode,
+        iterations = 10,
+        startupMode = StartupMode.COLD,
+        setupBlock = {
             pressHome()
+        }
+    ) {
         startActivityAndWait()
     }
 }

gradle/libs.versions.toml

@@ -16,6 +16,7 @@ androidxHiltHiltNavigationCompose = "1.1.0"
 androidxMacroBenchmark = "1.2.2"
 androidxLifecycleLifecycleRuntimeCompose = "2.7.0"
 androidxNavigationNavigationCompose = "2.7.6"
+androidxProfileinstallerProfileinstaller = "1.3.1"
 androidxRoom = "2.6.1"
 androidxTest = "1.5.0"
 androidxTestExtJunitKtx = "1.1.5"
@@ -57,6 +58,7 @@ androidx-datastore-datastore-preferences = { group = "androidx.datastore", name
 androidx-hilt-hilt-navigation-compose = { group = "androidx.hilt", name = "hilt-navigation-compose", version.ref = "androidxHiltHiltNavigationCompose" }
 androidx-lifecycle-lifecycle-runtime-compose = { group = "androidx.lifecycle", name = "lifecycle-runtime-compose", version.ref = "androidxLifecycleLifecycleRuntimeCompose" }
 androidx-navigation-navigation-compose = { group = "androidx.navigation", name = "navigation-compose", version.ref = "androidxNavigationNavigationCompose" }
+androidx-profileinstaller-profileinstaller = { group = "androidx.profileinstaller", name = "profileinstaller", version.ref = "androidxProfileinstallerProfileinstaller" }
 androidx-room-runtime = { group = "androidx.room", name = "room-runtime", version.ref = "androidxRoom" }
 androidx-room-ktx = { group = "androidx.room", name = "room-ktx", version.ref = "androidxRoom" }
 androidx-room-compiler = { group = "androidx.room", name = "room-compiler", version.ref = "androidxRoom" }