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Description
Steps to reproduce
Tool-chain:
- Xcode 16.0 Beta 4.
- Android Studio 2024.1.2 RC 1
- 3.24.0-1.0.pre.516 (Channel master)
- MotoG52 (Android 13) - Samsung A52 (Android 14 - OneUI 6.1)
- Clone the Wonderous app repository from GitHub.
- Navigate to the root directory of the project and launch the app in profile mode targeting a device using the command:
flutter run --profileSo you can later compare metrics. - Navigate through different screens of the app and record the metrics observed (in this impeller is enabled by default)
- Disable impeller by adding
<meta-data android:name="io.flutter.embedding.android.EnableImpeller" android:value="false" />to the manifest - Run the in profile mode again:
flutter run --profile - Compare results.
Expected results
Similar or better performance is expected while running the app using Impeller.
Actual results
Noticeable drop in FPS, increase in Janks & Shader Compilation.
Sometimes flickering was also observed while navigating.
Results:
Motorola G52 - Android 13:
Impeller ENABLED
Impeller DISABLED
Results:
Samsung A52 - Android 14:
Impeller ENABLED
Impeller DISABLED
Additionally, not 100% consistently, we were noticing flickering.
Not sure if it will be noted on video, but here is a recording on The Samsung Galaxy A52.
Screen_Recording_20240807_181127.mp4
Code sample
Code sample
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Logs
Logs
[Paste your logs here]Flutter Doctor output
Doctor output
[✓] Flutter (Channel master, 3.24.0-1.0.pre.516, on macOS 14.5 23F79 darwin-arm64, locale en-US)
• Flutter version 3.24.0-1.0.pre.516 on channel master at /Users/josefinadiz/flutter/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision d67f2cdebb (25 hours ago), 2024-08-08 13:51:06 -0400
• Engine revision 3978ddd8d7
• Dart version 3.6.0 (build 3.6.0-128.0.dev)
• DevTools version 2.38.0
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
• Android SDK at /Users/josefinadiz/Library/Android/sdk
• Platform android-35, build-tools 35.0.0
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 16.0)
• Xcode at /Applications/Xcode-beta.app/Contents/Developer
• Build 16A5221g
• CocoaPods version 1.15.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2024.1)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)
[✓] VS Code (version 1.92.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.94.0
[✓] Connected device (3 available)
• macOS (desktop) • macos • darwin-arm64 • macOS 14.5 23F79 darwin-arm64
• Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin • macOS 14.5 23F79 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 127.0.6533.100
[✓] Network resources
• All expected network resources are available.
• No issues **found!**Metadata
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Bot is counting down the days until it unassigns the issueImportant issues not at the top of the work listImpeller rendering backend issues and features requestsDevices & drivers that may be behaving unexpectedly and may need workarounds.Issue caught from manual QA processOwned by Engine teamTriaged by Engine team