eglPresentationTimeANDROID is no effective #94786
Description
Hi @dnfield
In flutter/engine#29727 , try to use eglPresentationTimeANDROID to avoid bogging down the GPU.
But it may not have worked. I added some logs to prove it.
Steps to Reproduce
- Execute
flutter runon the code sample
Actual results:
Kindly See Log
eglPresentationTimeANDROID-no-effect.log [download it and delete .log . And use https://ui.perfetto.dev/ to open it]
Can see trace also. Between the Red Flag to Blue Flag is one frame. In this frame raster commit 2 buffer to bufferQueue. These 2 buffer should be use/discard in the next Vsync-sf (Blue Flag). But it only use 1 frame.
Expected results:
Kindly See Log
See More detail In pull request flutter/engine#30182
Code sample
flutter/dev/benchmarks/complex_layout/lib/main.dartLogs
ChenXiao-MBP:complex_layout maxiao$ flutter doctor -v
[✓] Flutter (Channel master, 2.6.0-12.0.pre.885, on Mac OS X 10.15.7 19H1417 darwin-x64, locale zh-Hans-CN)
• Flutter version 2.6.0-12.0.pre.885 at /Users/maxiao/Documents/Develop/FlutterWorkPlace/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 16ec56ee0f (5 days ago), 2021-12-02 02:49:05 -0500
• Engine revision 888f4c0fc6
• Dart version 2.16.0 (build 2.16.0-56.0.dev)
• DevTools version 2.8.0
• Pub download mirror https://pub.flutter-io.cn
[!] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
• Android SDK at /Users/maxiao/Library/Android/sdk
✗ cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.
[!] Xcode - develop for iOS and macOS (Xcode 12.0.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
✗ Flutter requires a minimum Xcode version of 12.3.
Download the latest version or update via the Mac App Store.
• CocoaPods version 1.11.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 4.1)
• 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 1.8.0_242-release-1644-b3-6915495)
[✓] IntelliJ IDEA Community Edition (version 2021.2.1)
• IntelliJ at /Applications/IntelliJ IDEA CE.app
• 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
[!] IntelliJ IDEA Ultimate Edition (version 14.1.4)
• IntelliJ at /Applications/IntelliJ IDEA 14.app
• 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
✗ This install is older than the minimum recommended version of 2017.1.0.
[✓] VS Code (version 1.62.3)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension can be installed from:
🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (3 available)
• ALP AL00 (mobile) • UYT5T18712002828 • android-arm64 • Android 10 (API 29)
• macOS (desktop) • macos • darwin-x64 • Mac OS X 10.15.7 19H1417 darwin-x64
• Chrome (web) • chrome • web-javascript • Google Chrome 96.0.4664.55
! Doctor found issues in 3 categories.