[Impeller] Enabling Impeller on iOS simulator causing massive memory usage and latency #127482
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
- Running any of my apps on the iOS Simulator with impeller enabled.
macOS ventura 13.2
MacBook 2018 Pro 8 GB ram
https://stackoverflow.com/questions/76298094/impeller-rendering-engine-causing-massive-latency-and-memory-consumption Problem is encountered here as well with a computer with 4 times the amount of ram that i have.
Expected results
That the application is running as smooth on the simulator as without impeller enabled.
Actual results
With impeller enabled causing massive latency problems when trying to use the computer and massive memory consumption.
Process: SimMetalHost used about 2.65 gb ram while running with impeller directly after the loading of the app is done.
with the --no-enable-impeller flag everything goes back to running as smooth as butter.
with impeller
without impeller
Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.10.1, on macOS 13.2 22D49 darwin-x64, locale sv-SE)
• Flutter version 3.10.1 on channel stable at /Users/patrikpersson/dev/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision d3d8effc68 (7 days ago), 2023-05-16 17:59:05 -0700
• Engine revision b4fb11214d
• Dart version 3.0.1
• DevTools version 2.23.1
[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
• Android SDK at /Users/patrikpersson/Library/Android/sdk
• Platform android-33, build-tools 33.0.1
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b802.4-9586694)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 14.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 14E222b
• CocoaPods version 1.12.0
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2022.2)
• 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 17.0.6+0-17.0.6b802.4-9586694)
[✓] VS Code (version 1.78.2)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.64.0
[✓] VS Code (version 1.79.0-insider)
• VS Code at /Applications/Visual Studio Code - Insiders.app/Contents
• Flutter extension version 3.64.0
[✓] Connected device (3 available)
• iPhone 14 (mobile) • E3DDB83B-943F-4F57-9F0C-C058C57C6B58 • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-4 (simulator)
• macOS (desktop) • macos • darwin-x64 • macOS 13.2 22D49 darwin-x64
• Chrome (web) • chrome • web-javascript • Google Chrome 113.0.5672.126
[✓] Network resources
• All expected network resources are available.
• No issues found!