[Impeller] ListView in CupertinoPageScaffold becomes unresponsive in Simulator.

[wilpar]

Steps to reproduce

The following code brings the impeller to its knees, making it impossible to scroll through a list. No errors are noted in the terminal, but the app becomes unresponsive after a couple of scrolls or clicks.

Note: it runs fine on a physical phone.

Code sample

Code sample

class JankyPage extends StatelessWidget {
  const JankyPage({super.key});

  @override
  Widget build(BuildContext context) {
    return CupertinoPageScaffold(
        navigationBar: const CupertinoNavigationBar(
          middle: Text("Is This Janky?"),
        ),
        child: Material(
          child: ListView.separated(
            primary: false,
            shrinkWrap: true,
            itemCount: 50,
            itemBuilder: (_, index) {
              return ListTile(
                title: Text("Jank Test #$index"),
                trailing: const Icon(Icons.chevron_right),
                onTap: () => Navigator.of(context).push(
                    CupertinoPageRoute(builder: (context) => const Page2())),
              );
            },
            separatorBuilder: (context, index) => const Divider(),
          ),
        ));
  }
}

Performance profiling on master channel

• The issue still persists on the master channel

Timeline Traces

Simulator does not support.

Video demonstration

Video demonstration

Youtube

What target platforms are you seeing this bug on?

iOS

OS/Browser name and version | Device information

Physical Device: ios • iOS 17.5.1 21F90 - slower but it works.
Emulator: iPad mini (6th generation) (mobile) • 9240320C-09D6-4B8D-9ED1-AA8C992D61E0 • ios • com.apple.CoreSimulator.SimRuntime.iOS-17-4 (simulator)

Does the problem occur on emulator/simulator as well as on physical devices?

Yes

Is the problem only reproducible with Impeller?

Yes

Logs

Logs

                        export NATIVE_ARCH_64_BIT\=x86_64
                        export NATIVE_ARCH_ACTUAL\=x86_64
                        export NO_COMMON\=YES
                        export OBJC_ABI_VERSION\=2
                        export
                        OBJECT_FILE_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.n
                        oindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects
                        export
                        OBJECT_FILE_DIR_normal\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermed
                        iates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal
                        export
                        OBJROOT\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex
                        export ONLY_ACTIVE_ARCH\=YES
                        export OS\=MACOS
                        export OSAC\=/usr/bin/osacompile
                        export PACKAGE_CONFIG\=/Users/rhof/Documents/Code/test/jank/.dart_tool/package_config.json
                        export PACKAGE_TYPE\=com.apple.package-type.wrapper.application
                        export PASCAL_STRINGS\=YES
                        export
                        PATH\=/Applications/Xcode.app/Contents/SharedFrameworks/XCBuild.framework/Versions/A/PlugIns/XCBBuildService.bundle/Conten
                        ts/PlugIns/XCBSpecifications.ideplugin/Contents/Resources:/Applications/Xcode.app/Contents/SharedFrameworks/XCBuild.framew
                        ork/Versions/A/PlugIns/XCBBuildService.bundle/Contents/PlugIns/XCBSpecifications.ideplugin:/Applications/Xcode.app/Content
                        s/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault
                        .xctoolchain/usr/appleinternal/bin:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/loca
                        l/bin:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/libexec:/Applications/Xcode.app/C
                        ontents/Developer/Platforms/iPhoneSimulator.platform/usr/bin:/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSi
                        mulator.platform/usr/appleinternal/bin:/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/usr/l
                        ocal/bin:/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xco
                        de.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/local/bin:/Applications/Xcode.app/Contents/Deve
                        loper/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/local/bin:/usr/local/opt/node@18/bin:/usr/local/lib/ruby/gems
                        /3.2.0/bin:/usr/local/opt/ruby/bin:/Users/rhof/google-cloud-sdk/bin:/Users/rhof/bin:/usr/local/bin:/System/Cryptexes/App/u
                        sr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/co
                        m.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/a
                        ppleinternal/bin:/Library/Apple/usr/bin:/Users/rhof/work/flutterSDK/bin/:/Users/rhof/work/flutterSDK/bin:/Users/rhof/.pub-
                        cache/bin:/Users/rhof/.rvm/bin
                        export PATH_PREFIXES_EXCLUDED_FROM_HEADER_DEPENDENCIES\=/usr/include\ /usr/local/include\ /System/Library/Frameworks\
                        /System/Library/PrivateFrameworks\ /Applications/Xcode.app/Contents/Developer/Headers\
                        /Applications/Xcode.app/Contents/Developer/SDKs\ /Applications/Xcode.app/Contents/Developer/Platforms
                        export PBDEVELOPMENTPLIST_PATH\=Runner.app/pbdevelopment.plist
                        export
                        PER_ARCH_OBJECT_FILE_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Interm
                        ediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/undefined_arch
                        export
                        PER_VARIANT_OBJECT_FILE_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Int
                        ermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal
                        export
                        PKGINFO_FILE_PATH\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates
                        .noindex/Runner.build/Debug-iphonesimulator/Runner.build/PkgInfo
                        export PKGINFO_PATH\=Runner.app/PkgInfo
                        export
                        PLATFORM_DEVELOPER_APPLICATIONS_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Develop
                        er/Applications
                        export
                        PLATFORM_DEVELOPER_BIN_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bi
                        n
                        export
                        PLATFORM_DEVELOPER_LIBRARY_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Li
                        brary
                        export
                        PLATFORM_DEVELOPER_SDK_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs
                        export
                        PLATFORM_DEVELOPER_TOOLS_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Tool
                        s
                        export
                        PLATFORM_DEVELOPER_USR_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr
                        export PLATFORM_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform
                        export PLATFORM_DISPLAY_NAME\=iOS\ Simulator
                        export PLATFORM_FAMILY_NAME\=iOS
                        export PLATFORM_NAME\=iphonesimulator
                        export PLATFORM_PREFERRED_ARCH\=x86_64
                        export PLATFORM_PRODUCT_BUILD_VERSION\=21E210
                        export PLIST_FILE_OUTPUT_FORMAT\=binary
                        export PLUGINS_FOLDER_PATH\=Runner.app/PlugIns
                        export PODS_BUILD_DIR\=/Users/rhof/Documents/Code/test/jank/build/ios
                        export PODS_CONFIGURATION_BUILD_DIR\=/Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator
                        export PODS_PODFILE_DIR_PATH\=/Users/rhof/Documents/Code/test/jank/ios/.
                        export PODS_ROOT\=/Users/rhof/Documents/Code/test/jank/ios/Pods
                        export
                        PODS_XCFRAMEWORKS_BUILD_DIR\=/Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/XCFrameworkIntermediates
                        export PRECOMPS_INCLUDE_HEADERS_FROM_BUILT_PRODUCTS_DIR\=YES
                        export
                        PRECOMP_DESTINATION_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Interme
                        diates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/PrefixHeaders
                        export PRESERVE_DEAD_CODE_INITS_AND_TERMS\=NO
                        export PRIVATE_HEADERS_FOLDER_PATH\=Runner.app/PrivateHeaders
                        export
                        PROCESSED_INFOPLIST_PATH\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Interm
                        ediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/undefined_arch/Processed-Info.plist
                        export PRODUCT_BUNDLE_IDENTIFIER\=com.extraservings.jank
                        export PRODUCT_BUNDLE_PACKAGE_TYPE\=APPL
                        export PRODUCT_MODULE_NAME\=Runner
                        export PRODUCT_NAME\=Runner
                        export PRODUCT_SETTINGS_PATH\=/Users/rhof/Documents/Code/test/jank/ios/Runner/Info.plist
                        export PRODUCT_TYPE\=com.apple.product-type.application
                        export PROFILING_CODE\=NO
                        export PROJECT\=Runner
                        export
                        PROJECT_DERIVED_FILE_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Interm
                        ediates.noindex/Runner.build/DerivedSources
                        export PROJECT_DIR\=/Users/rhof/Documents/Code/test/jank/ios
                        export PROJECT_FILE_PATH\=/Users/rhof/Documents/Code/test/jank/ios/Runner.xcodeproj
                        export PROJECT_NAME\=Runner
                        export
                        PROJECT_TEMP_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.
                        noindex/Runner.build
                        export
                        PROJECT_TEMP_ROOT\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates
                        .noindex
                        export PROVISIONING_PROFILE_REQUIRED\=NO
                        export PROVISIONING_PROFILE_REQUIRED_YES_YES\=YES
                        export PROVISIONING_PROFILE_SUPPORTED\=YES
                        export PUBLIC_HEADERS_FOLDER_PATH\=Runner.app/Headers
                        export RECOMMENDED_IPHONEOS_DEPLOYMENT_TARGET\=12.5
                        export RECURSIVE_SEARCH_PATHS_FOLLOW_SYMLINKS\=YES
                        export REMOVE_CVS_FROM_RESOURCES\=YES
                        export REMOVE_GIT_FROM_RESOURCES\=YES
                        export REMOVE_HEADERS_FROM_EMBEDDED_BUNDLES\=YES
                        export REMOVE_HG_FROM_RESOURCES\=YES
                        export REMOVE_STATIC_EXECUTABLES_FROM_EMBEDDED_BUNDLES\=YES
                        export REMOVE_SVN_FROM_RESOURCES\=YES
                        export
                        REZ_COLLECTOR_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates
                        .noindex/Runner.build/Debug-iphonesimulator/Runner.build/ResourceManagerResources
                        export
                        REZ_OBJECTS_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.n
                        oindex/Runner.build/Debug-iphonesimulator/Runner.build/ResourceManagerResources/Objects
                        export REZ_SEARCH_PATHS\=/Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator\ 
                        export SCAN_ALL_SOURCE_FILES_FOR_INCLUDES\=NO
                        export SCRIPTS_FOLDER_PATH\=Runner.app/Scripts
                        export SCRIPT_INPUT_FILE_0\=/Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Info.plist
                        export SCRIPT_INPUT_FILE_COUNT\=1
                        export SCRIPT_INPUT_FILE_LIST_COUNT\=0
                        export SCRIPT_OUTPUT_FILE_COUNT\=0
                        export SCRIPT_OUTPUT_FILE_LIST_COUNT\=0
                        export
                        SCRIPT_OUTPUT_STREAM_FILE\=/var/folders/mw/qpnd02kj7h7gcdy7pg0pn2q40000gn/T/flutter_tools.vMS64E/flutter_ios_build_temp_di
                        rLvjY0a/pipe_to_stdout
                        export
                        SDKROOT\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator17.4.
                        sdk
                        export
                        SDK_DIR\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator17.4.
                        sdk
                        export
                        SDK_DIR_iphonesimulator\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPho
                        neSimulator17.4.sdk
                        export
                        SDK_DIR_iphonesimulator17_4\=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/
                        iPhoneSimulator17.4.sdk
                        export SDK_NAME\=iphonesimulator17.4
                        export SDK_NAMES\=iphonesimulator17.4
                        export SDK_PRODUCT_BUILD_VERSION\=21E210
                        export SDK_STAT_CACHE_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData
                        export SDK_STAT_CACHE_ENABLE\=YES
                        export
                        SDK_STAT_CACHE_PATH\=/Users/rhof/Library/Developer/Xcode/DerivedData/SDKStatCaches.noindex/iphonesimulator17.4-21E210-aa93
                        b11c43e2d16681ac3fa171344f4f.sdkstatcache
                        export SDK_VERSION\=17.4
                        export SDK_VERSION_ACTUAL\=170400
                        export SDK_VERSION_MAJOR\=170000
                        export SDK_VERSION_MINOR\=170400
                        export SED\=/usr/bin/sed
                        export SEPARATE_STRIP\=NO
                        export SEPARATE_SYMBOL_EDIT\=NO
                        export SET_DIR_MODE_OWNER_GROUP\=YES
                        export SET_FILE_MODE_OWNER_GROUP\=NO
                        export SHALLOW_BUNDLE\=YES
                        export SHALLOW_BUNDLE_TRIPLE\=ios-simulator
                        export SHALLOW_BUNDLE_ios_macabi\=NO
                        export SHALLOW_BUNDLE_macos\=NO
                        export SHARED_DERIVED_FILE_DIR\=/Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/DerivedSources
                        export SHARED_FRAMEWORKS_FOLDER_PATH\=Runner.app/SharedFrameworks
                        export
                        SHARED_PRECOMPS_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediat
                        es.noindex/PrecompiledHeaders
                        export SHARED_SUPPORT_FOLDER_PATH\=Runner.app/SharedSupport
                        export SKIP_INSTALL\=NO
                        export SOURCE_ROOT\=/Users/rhof/Documents/Code/test/jank/ios
                        export SRCROOT\=/Users/rhof/Documents/Code/test/jank/ios
                        export
                        STRINGSDATA_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.n
                        oindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/undefined_arch
                        export
                        STRINGSDATA_ROOT\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.
                        noindex/Runner.build/Debug-iphonesimulator/Runner.build
                        export STRINGS_FILE_INFOPLIST_RENAME\=YES
                        export STRINGS_FILE_OUTPUT_ENCODING\=binary
                        export STRIP_BITCODE_FROM_COPIED_FILES\=NO
                        export STRIP_INSTALLED_PRODUCT\=NO
                        export STRIP_STYLE\=all
                        export STRIP_SWIFT_SYMBOLS\=YES
                        export SUPPORTED_DEVICE_FAMILIES\=1,2
                        export SUPPORTED_PLATFORMS\=iphoneos\ iphonesimulator
                        export SUPPORTS_MACCATALYST\=NO
                        export SUPPORTS_ON_DEMAND_RESOURCES\=YES
                        export SUPPORTS_TEXT_BASED_API\=NO
                        export SUPPRESS_WARNINGS\=NO
                        export SWIFT_EMIT_LOC_STRINGS\=NO
                        export SWIFT_OBJC_BRIDGING_HEADER\=Runner/Runner-Bridging-Header.h
                        export SWIFT_OPTIMIZATION_LEVEL\=-Onone
                        export SWIFT_PLATFORM_TARGET_PREFIX\=ios
                        export
                        SWIFT_RESPONSE_FILE_PATH_normal_x86_64\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqep
                        z/Build/Intermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner.SwiftFileList
                        export SWIFT_VERSION\=5.0
                        export SYMROOT\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Products
                        export SYSTEM_ADMIN_APPS_DIR\=/Applications/Utilities
                        export SYSTEM_APPS_DIR\=/Applications
                        export SYSTEM_CORE_SERVICES_DIR\=/System/Library/CoreServices
                        export SYSTEM_DEMOS_DIR\=/Applications/Extras
                        export SYSTEM_DEVELOPER_APPS_DIR\=/Applications/Xcode.app/Contents/Developer/Applications
                        export SYSTEM_DEVELOPER_BIN_DIR\=/Applications/Xcode.app/Contents/Developer/usr/bin
                        export SYSTEM_DEVELOPER_DEMOS_DIR\=/Applications/Xcode.app/Contents/Developer/Applications/Utilities/Built\ Examples
                        export SYSTEM_DEVELOPER_DIR\=/Applications/Xcode.app/Contents/Developer
                        export SYSTEM_DEVELOPER_DOC_DIR\=/Applications/Xcode.app/Contents/Developer/ADC\ Reference\ Library
                        export SYSTEM_DEVELOPER_GRAPHICS_TOOLS_DIR\=/Applications/Xcode.app/Contents/Developer/Applications/Graphics\ Tools
                        export SYSTEM_DEVELOPER_JAVA_TOOLS_DIR\=/Applications/Xcode.app/Contents/Developer/Applications/Java\ Tools
                        export SYSTEM_DEVELOPER_PERFORMANCE_TOOLS_DIR\=/Applications/Xcode.app/Contents/Developer/Applications/Performance\ Tools
                        export SYSTEM_DEVELOPER_RELEASENOTES_DIR\=/Applications/Xcode.app/Contents/Developer/ADC\ Reference\ Library/releasenotes
                        export SYSTEM_DEVELOPER_TOOLS\=/Applications/Xcode.app/Contents/Developer/Tools
                        export SYSTEM_DEVELOPER_TOOLS_DOC_DIR\=/Applications/Xcode.app/Contents/Developer/ADC\ Reference\
                        Library/documentation/DeveloperTools
                        export SYSTEM_DEVELOPER_TOOLS_RELEASENOTES_DIR\=/Applications/Xcode.app/Contents/Developer/ADC\ Reference\
                        Library/releasenotes/DeveloperTools
                        export SYSTEM_DEVELOPER_USR_DIR\=/Applications/Xcode.app/Contents/Developer/usr
                        export SYSTEM_DEVELOPER_UTILITIES_DIR\=/Applications/Xcode.app/Contents/Developer/Applications/Utilities
                        export SYSTEM_DEXT_INSTALL_PATH\=/System/Library/DriverExtensions
                        export SYSTEM_DOCUMENTATION_DIR\=/Library/Documentation
                        export SYSTEM_EXTENSIONS_FOLDER_PATH\=Runner.app/SystemExtensions
                        export SYSTEM_EXTENSIONS_FOLDER_PATH_SHALLOW_BUNDLE_NO\=Runner.app/Library/SystemExtensions
                        export SYSTEM_EXTENSIONS_FOLDER_PATH_SHALLOW_BUNDLE_YES\=Runner.app/SystemExtensions
                        export SYSTEM_KEXT_INSTALL_PATH\=/System/Library/Extensions
                        export SYSTEM_LIBRARY_DIR\=/System/Library
                        export TAPI_DEMANGLE\=YES
                        export TAPI_ENABLE_PROJECT_HEADERS\=NO
                        export TAPI_LANGUAGE\=objective-c
                        export TAPI_LANGUAGE_STANDARD\=compiler-default
                        export TAPI_USE_SRCROOT\=YES
                        export TAPI_VERIFY_MODE\=Pedantic
                        export TARGETED_DEVICE_FAMILY\=1,2
                        export TARGETNAME\=Runner
                        export TARGET_BUILD_DIR\=/Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator
                        export TARGET_DEVICE_IDENTIFIER\=9240320C-09D6-4B8D-9ED1-AA8C992D61E0
                        export TARGET_DEVICE_MODEL\=iPad14,1
                        export TARGET_DEVICE_OS_VERSION\=17.4
                        export TARGET_DEVICE_PLATFORM_NAME\=iphonesimulator
                        export TARGET_NAME\=Runner
                        export
                        TARGET_TEMP_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.n
                        oindex/Runner.build/Debug-iphonesimulator/Runner.build
                        export
                        TEMP_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/
                        Runner.build/Debug-iphonesimulator/Runner.build
                        export
                        TEMP_FILES_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.no
                        index/Runner.build/Debug-iphonesimulator/Runner.build
                        export
                        TEMP_FILE_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noi
                        ndex/Runner.build/Debug-iphonesimulator/Runner.build
                        export
                        TEMP_ROOT\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex
                        export TEST_FRAMEWORK_SEARCH_PATHS\=\
                        /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/Frameworks\
                        /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator17.4.sdk/Devel
                        oper/Library/Frameworks
                        export TEST_LIBRARY_SEARCH_PATHS\=\
                        /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/lib
                        export TOOLCHAINS\=com.apple.dt.toolchain.XcodeDefault
                        export TOOLCHAIN_DIR\=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
                        export TRACK_WIDGET_CREATION\=true
                        export TREAT_MISSING_BASELINES_AS_TEST_FAILURES\=NO
                        export TREE_SHAKE_ICONS\=false
                        export TeamIdentifierPrefix\=D5995NG3ZB.
                        export UID\=501
                        export
                        UNINSTALLED_PRODUCTS_DIR\=/Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Interm
                        ediates.noindex/UninstalledProducts
                        export UNLOCALIZED_RESOURCES_FOLDER_PATH\=Runner.app
                        export UNLOCALIZED_RESOURCES_FOLDER_PATH_SHALLOW_BUNDLE_NO\=Runner.app/Resources
                        export UNLOCALIZED_RESOURCES_FOLDER_PATH_SHALLOW_BUNDLE_YES\=Runner.app
                        export UNSTRIPPED_PRODUCT\=NO
                        export USER\=rhof
                        export USER_APPS_DIR\=/Users/rhof/Applications
                        export USER_LIBRARY_DIR\=/Users/rhof/Library
                        export USE_DYNAMIC_NO_PIC\=YES
                        export USE_HEADERMAP\=YES
                        export USE_HEADER_SYMLINKS\=NO
                        export USE_RECURSIVE_SCRIPT_INPUTS_IN_SCRIPT_PHASES\=YES
                        export VALIDATE_DEVELOPMENT_ASSET_PATHS\=YES_ERROR
                        export VALIDATE_PRODUCT\=NO
                        export VALID_ARCHS\=arm64\ arm64e\ i386\ x86_64
                        export VERBOSE_PBXCP\=NO
                        export VERBOSE_SCRIPT_LOGGING\=YES
                        export VERSIONING_SYSTEM\=apple-generic
                        export VERSIONPLIST_PATH\=Runner.app/version.plist
                        export VERSION_INFO_BUILDER\=rhof
                        export VERSION_INFO_FILE\=Runner_vers.c
                        export VERSION_INFO_STRING\=\"@\(\#\)PROGRAM:Runner\ \ PROJECT:Runner-1\"
                        export WRAPPER_EXTENSION\=app
                        export WRAPPER_NAME\=Runner.app
                        export WRAPPER_SUFFIX\=.app
                        export WRAP_ASSET_PACKS_IN_SEPARATE_DIRECTORIES\=NO
                        export XCODE_APP_SUPPORT_DIR\=/Applications/Xcode.app/Contents/Developer/Library/Xcode
                        export XCODE_PRODUCT_BUILD_VERSION\=15E204a
                        export XCODE_VERSION_ACTUAL\=1530
                        export XCODE_VERSION_MAJOR\=1500
                        export XCODE_VERSION_MINOR\=1530
                        export XPCSERVICES_FOLDER_PATH\=Runner.app/XPCServices
                        export YACC\=yacc
                        export _WRAPPER_CONTENTS_DIR_SHALLOW_BUNDLE_NO\=/Contents
                        export _WRAPPER_PARENT_PATH_SHALLOW_BUNDLE_NO\=/..
                        export _WRAPPER_RESOURCES_DIR_SHALLOW_BUNDLE_NO\=/Resources
                        export __IS_NOT_MACOS\=YES
                        export __IS_NOT_MACOS_macosx\=NO
                        export __IS_NOT_SIMULATOR\=NO
                        export __IS_NOT_SIMULATOR_simulator\=NO
                        export arch\=undefined_arch
                        export variant\=normal
                        /bin/sh -c
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/Script-3B06AD1E1E4923F5004D2608.sh
                    ♦ No native assets to bundle. /Users/rhof/Documents/Code/test/jank/build/native_assets/ios/ doesn't exist.

                    ExtractAppIntentsMetadata (in target 'Runner' from project 'Runner')
                        cd /Users/rhof/Documents/Code/test/jank/ios
                        /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/appintentsmetadataprocessor
                        --output /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app --toolchain-dir
                        /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain --module-name Runner --sdk-root
                        /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator17.4.sdk
                        --xcode-version 15E204a --platform-family iOS --deployment-target 12.0 --target-triple x86_64-apple-ios12.0-simulator
                        --binary-file /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Runner --dependency-file
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner_dependency_info.dat --stringsdata-file
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/ExtractedAppShortcutsMetadata.stringsdata --source-file-list
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner.SwiftFileList --swift-const-vals-list
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner.SwiftConstValuesFileList --compile-time-extraction
                        --deployment-aware-processing
                    note: Metadata extraction skipped. No AppIntents.framework dependency found. (in target 'Runner' from project 'Runner')

                    CopySwiftLibs /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app (in target 'Runner' from project
                    'Runner')
                        cd /Users/rhof/Documents/Code/test/jank/ios
                        builtin-swiftStdLibTool --copy --verbose --sign - --scan-executable
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Runner --scan-folder
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Frameworks --scan-folder
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/PlugIns --scan-folder
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/SystemExtensions --scan-folder
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Extensions --scan-folder
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Pods_Runner.framework --platform iphonesimulator
                        --toolchain /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain --destination
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Frameworks --strip-bitcode
                        --strip-bitcode-tool /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/bitcode_strip
                        --emit-dependency-info
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/SwiftStdLibToolInputDependencies.dep --filter-for-swift-os

                    AppIntentsSSUTraining (in target 'Runner' from project 'Runner')
                        cd /Users/rhof/Documents/Code/test/jank/ios
                        /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/appintentsnltrainingprocessor
                        --infoplist-path /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Info.plist
                        --temp-dir-path
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/ssu --bundle-id com.extraservings.jank --product-path
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app --extracted-metadata-path
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app/Metadata.appintents --archive-ssu-assets
                    2024-06-07 17:04:05.442 appintentsnltrainingprocessor[22162:176874] Parsing options for appintentsnltrainingprocessor
                    2024-06-07 17:04:05.444 appintentsnltrainingprocessor[22162:176874] No AppShortcuts found - Skipping.

                    CodeSign /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app (in target 'Runner' from project
                    'Runner')
                        cd /Users/rhof/Documents/Code/test/jank/ios

                        Signing Identity:     "-"

                        /usr/bin/codesign --force --sign - --entitlements
                        /Users/rhof/Library/Developer/Xcode/DerivedData/Runner-duyamsqudzeblxenuhkhkztcqepz/Build/Intermediates.noindex/Runner.bui
                        ld/Debug-iphonesimulator/Runner.build/Runner.app.xcent --timestamp\=none --generate-entitlement-der
                        /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app

                    Validate /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app (in target 'Runner' from project
                    'Runner')
                        cd /Users/rhof/Documents/Code/test/jank/ios
                        builtin-validationUtility /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app


                    Result bundle written to path:
                        /var/folders/mw/qpnd02kj7h7gcdy7pg0pn2q40000gn/T/flutter_tools.vMS64E/flutter_ios_build_temp_dirLvjY0a/temporary_xcresult_bun
                        dle

                    ** BUILD SUCCEEDED **
[ +101 ms]  └─Compiling, linking and signing... (completed in 3.9s)
[   +2 ms] Xcode build done.                                           17.3s
[  +27 ms] executing: xcrun xcresulttool get --path
/var/folders/mw/qpnd02kj7h7gcdy7pg0pn2q40000gn/T/flutter_tools.vMS64E/flutter_ios_build_temp_dirLvjY0a/temporary_xcresult_bundle --format json
[  +73 ms] {
             "_type" : {
               "_name" : "ActionsInvocationRecord"
             },
             "actions" : {
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                       "_type" : {
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                           "_name" : "String"
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                         "_value" : "MacBook Pro"
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                       "modelUTI" : {
                         "_type" : {
                           "_name" : "String"
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                         "_value" : "com.apple.macbookpro-13-retina-four-usb-ports-2020"
                       },
                       "name" : {
                         "_type" : {
                           "_name" : "String"
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                         "_value" : "My Mac"
                       },
                       "nativeArchitecture" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "x86_64h"
                       },
                       "operatingSystemVersion" : {
                         "_type" : {
                           "_name" : "String"
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                         "_value" : "14.5"
                       },
                       "operatingSystemVersionWithBuildNumber" : {
                         "_type" : {
                           "_name" : "String"
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                         "_value" : "14.5 (23F79)"
                       },
                       "physicalCPUCoresPerPackage" : {
                         "_type" : {
                           "_name" : "Int"
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                         "_value" : "4"
                       },
                       "platformRecord" : {
                         "_type" : {
                           "_name" : "ActionPlatformRecord"
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                         "identifier" : {
                           "_type" : {
                             "_name" : "String"
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                           "_value" : "com.apple.platform.macosx"
                         },
                         "userDescription" : {
                           "_type" : {
                             "_name" : "String"
                           },
                           "_value" : "macOS"
                         }
                       },
                       "ramSizeInMegabytes" : {
                         "_type" : {
                           "_name" : "Int"
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                         "_value" : "16384"
                       }
                     },
                     "targetArchitecture" : {
                       "_type" : {
                         "_name" : "String"
                       },
                       "_value" : "x86_64"
                     },
                     "targetDeviceRecord" : {
                       "_type" : {
                         "_name" : "ActionDeviceRecord"
                       },
                       "busSpeedInMHz" : {
                         "_type" : {
                           "_name" : "Int"
                         },
                         "_value" : "0"
                       },
                       "cpuCount" : {
                         "_type" : {
                           "_name" : "Int"
                         },
                         "_value" : "0"
                       },
                       "cpuSpeedInMHz" : {
                         "_type" : {
                           "_name" : "Int"
                         },
                         "_value" : "0"
                       },
                       "identifier" : {
                         "_type" : {
                           "_name" : "String"
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                         "_value" : "9240320C-09D6-4B8D-9ED1-AA8C992D61E0"
                       },
                       "isConcreteDevice" : {
                         "_type" : {
                           "_name" : "Bool"
                         },
                         "_value" : "true"
                       },
                       "logicalCPUCoresPerPackage" : {
                         "_type" : {
                           "_name" : "Int"
                         },
                         "_value" : "0"
                       },
                       "modelCode" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "iPad14,1"
                       },
                       "modelName" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "iPad mini (6th generation)"
                       },
                       "modelUTI" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "com.apple.ipad-mini6-1"
                       },
                       "name" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "iPad mini (6th generation)"
                       },
                       "nativeArchitecture" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "x86_64"
                       },
                       "operatingSystemVersion" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "17.4"
                       },
                       "operatingSystemVersionWithBuildNumber" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "17.4 (21E213)"
                       },
                       "physicalCPUCoresPerPackage" : {
                         "_type" : {
                           "_name" : "Int"
                         },
                         "_value" : "0"
                       },
                       "platformRecord" : {
                         "_type" : {
                           "_name" : "ActionPlatformRecord"
                         },
                         "identifier" : {
                           "_type" : {
                             "_name" : "String"
                           },
                           "_value" : "com.apple.platform.iphonesimulator"
                         },
                         "userDescription" : {
                           "_type" : {
                             "_name" : "String"
                           },
                           "_value" : "iOS Simulator"
                         }
                       },
                       "ramSizeInMegabytes" : {
                         "_type" : {
                           "_name" : "Int"
                         },
                         "_value" : "0"
                       }
                     },
                     "targetSDKRecord" : {
                       "_type" : {
                         "_name" : "ActionSDKRecord"
                       },
                       "identifier" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "iphonesimulator17.4"
                       },
                       "name" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "Simulator - iOS 17.4"
                       },
                       "operatingSystemVersion" : {
                         "_type" : {
                           "_name" : "String"
                         },
                         "_value" : "17.4"
                       }
                     }
                   },
                   "schemeCommandName" : {
                     "_type" : {
                       "_name" : "String"
                     },
                     "_value" : "Run"
                   },
                   "schemeTaskName" : {
                     "_type" : {
                       "_name" : "String"
                     },
                     "_value" : "Build"
                   },
                   "startedTime" : {
                     "_type" : {
                       "_name" : "Date"
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                     "_value" : "2024-06-07T17:03:50.800-0400"
                   },
                   "title" : {
                     "_type" : {
                       "_name" : "String"
                     },
                     "_value" : "Build \"Runner\""
                   }
                 }
               ]
             },
             "issues" : {
               "_type" : {
                 "_name" : "ResultIssueSummaries"
               }
             },
             "metadataRef" : {
               "_type" : {
                 "_name" : "Reference"
               },
               "id" : {
                 "_type" : {
                   "_name" : "String"
                 },
                 "_value" : "0~ZHpTXBh_F2-3Q3Fbs2EjGXgFiO2IsFT30oL-ngDbEfaZZ1z7603nw-4mnbkT8yCBRUFZWh4EwA3xwDgREpr-fw=="
               },
               "targetType" : {
                 "_type" : {
                   "_name" : "TypeDefinition"
                 },
                 "name" : {
                   "_type" : {
                     "_name" : "String"
                   },
                   "_value" : "ActionsInvocationMetadata"
                 }
               }
             },
             "metrics" : {
               "_type" : {
                 "_name" : "ResultMetrics"
               }
             }
           }
[   +6 ms] executing: rsync -8 -av --delete /Users/rhof/Documents/Code/test/jank/build/ios/Debug-iphonesimulator/Runner.app
/Users/rhof/Documents/Code/test/jank/build/ios/iphonesimulator
[  +34 ms] building file list ... done
           Runner.app/
           Runner.app/Info.plist
           Runner.app/Runner
           Runner.app/_CodeSignature/CodeResources

           sent 116620 bytes  received 92 bytes  233424.00 bytes/sec
           total size is 103730329  speedup is 888.77
[   +3 ms] executing: xcrun simctl install 9240320C-09D6-4B8D-9ED1-AA8C992D61E0
/Users/rhof/Documents/Code/test/jank/build/ios/iphonesimulator/Runner.app
[ +858 ms] executing: /usr/bin/plutil -convert xml1 -o - /Users/rhof/Documents/Code/test/jank/build/ios/iphonesimulator/Runner.app/Info.plist
[  +20 ms] Exit code 0 from: /usr/bin/plutil -convert xml1 -o -
/Users/rhof/Documents/Code/test/jank/build/ios/iphonesimulator/Runner.app/Info.plist
[        ] <?xml version="1.0" encoding="UTF-8"?>
           <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
           <plist version="1.0">
           <dict>
                <key>BuildMachineOSBuild</key>
                <string>23F79</string>
                <key>CADisableMinimumFrameDurationOnPhone</key>
                <true/>
                <key>CFBundleDevelopmentRegion</key>
                <string>en</string>
                <key>CFBundleDisplayName</key>
                <string>Jank</string>
                <key>CFBundleExecutable</key>
                <string>Runner</string>
                <key>CFBundleIcons</key>
                <dict>
                        <key>CFBundlePrimaryIcon</key>
                        <dict>
                                <key>CFBundleIconFiles</key>
                                <array>
                                        <string>AppIcon60x60</string>
                                </array>
                                <key>CFBundleIconName</key>
                                <string>AppIcon</string>
                        </dict>
                </dict>
                <key>CFBundleIcons~ipad</key>
                <dict>
                        <key>CFBundlePrimaryIcon</key>
                        <dict>
                                <key>CFBundleIconFiles</key>
                                <array>
                                        <string>AppIcon60x60</string>
                                        <string>AppIcon76x76</string>
                                </array>
                                <key>CFBundleIconName</key>
                                <string>AppIcon</string>
                        </dict>
                </dict>
                <key>CFBundleIdentifier</key>
                <string>com.extraservings.jank</string>
                <key>CFBundleInfoDictionaryVersion</key>
                <string>6.0</string>
                <key>CFBundleName</key>
                <string>jank</string>
                <key>CFBundlePackageType</key>
                <string>APPL</string>
                <key>CFBundleShortVersionString</key>
                <string>1.0.0</string>
                <key>CFBundleSignature</key>
                <string>????</string>
                <key>CFBundleSupportedPlatforms</key>
                <array>
                        <string>iPhoneSimulator</string>
                </array>
                <key>CFBundleVersion</key>
                <string>1</string>
                <key>DTCompiler</key>
                <string>com.apple.compilers.llvm.clang.1_0</string>
                <key>DTPlatformBuild</key>
                <string>21E210</string>
                <key>DTPlatformName</key>
                <string>iphonesimulator</string>
                <key>DTPlatformVersion</key>
                <string>17.4</string>
                <key>DTSDKBuild</key>
                <string>21E210</string>
                <key>DTSDKName</key>
                <string>iphonesimulator17.4</string>
                <key>DTXcode</key>
                <string>1530</string>
                <key>DTXcodeBuild</key>
                <string>15E204a</string>
                <key>LSRequiresIPhoneOS</key>
                <true/>
                <key>MinimumOSVersion</key>
                <string>12.0</string>
                <key>NSBonjourServices</key>
                <array>
                        <string>_dartVmService._tcp</string>
                </array>
                <key>NSLocalNetworkUsageDescription</key>
                <string>Allow Flutter tools on your computer to connect and debug your application. This prompt will not appear on release
                builds.</string>
                <key>UIApplicationSupportsIndirectInputEvents</key>
                <true/>
                <key>UIDeviceFamily</key>
                <array>
                        <integer>1</integer>
                        <integer>2</integer>
                </array>
                <key>UILaunchStoryboardName</key>
                <string>LaunchScreen</string>
                <key>UIMainStoryboardFile</key>
                <string>Main</string>
                <key>UISupportedInterfaceOrientations</key>
                <array>
                        <string>UIInterfaceOrientationPortrait</string>
                        <string>UIInterfaceOrientationLandscapeLeft</string>
                        <string>UIInterfaceOrientationLandscapeRight</string>
                </array>
                <key>UISupportedInterfaceOrientations~ipad</key>
                <array>
                        <string>UIInterfaceOrientationPortrait</string>
                        <string>UIInterfaceOrientationPortraitUpsideDown</string>
                        <string>UIInterfaceOrientationLandscapeLeft</string>
                        <string>UIInterfaceOrientationLandscapeRight</string>
                </array>
           </dict>
           </plist>
[   +9 ms] executing: xcrun simctl launch 9240320C-09D6-4B8D-9ED1-AA8C992D61E0 com.extraservings.jank --enable-dart-profiling
--enable-checked-mode --verify-entry-points
[ +469 ms] com.extraservings.jank: 22181
[        ] Waiting for VM Service port to be available...
[ +752 ms] VM Service URL on device: http://127.0.0.1:61782/RCzh1vYbkp4=/
[  +27 ms] Caching compiled dill
[ +165 ms] Connecting to service protocol: http://127.0.0.1:61782/RCzh1vYbkp4=/
[ +224 ms] Launching a Dart Developer Service (DDS) instance at http://127.0.0.1:0, connecting to VM service at
http://127.0.0.1:61782/RCzh1vYbkp4=/.
[ +111 ms] DDS is listening at http://127.0.0.1:61785/rNnPTSlScS4=/.
[ +182 ms] Successfully connected to service protocol: http://127.0.0.1:61782/RCzh1vYbkp4=/
[  +39 ms] DevFS: Creating new filesystem on the device (null)
[  +26 ms] DevFS: Created new filesystem on the device
(file:///Users/rhof/Library/Developer/CoreSimulator/Devices/9240320C-09D6-4B8D-9ED1-AA8C992D61E0/data/Containers/Data/Application/D57ED6D6-A394-48
D7-8300-35ECEF33EE51/tmp/jankDM37ON/jank/)
[   +3 ms] Updating assets
[ +145 ms] Syncing files to device iPad mini (6th generation)...
[   +3 ms] Compiling dart to kernel with 0 updated files
[        ] Processing bundle.
[   +2 ms] <- recompile package:jank/main.dart c8159e69-2db1-4665-9a1b-860275cda2f5
[        ] <- c8159e69-2db1-4665-9a1b-860275cda2f5
[   +7 ms] Bundle processing done.
[  +60 ms] Updating files.
[        ] Pending asset builds completed. Writing dirty entries.
[        ] DevFS: Sync finished
[   +1 ms] Syncing files to device iPad mini (6th generation)... (completed in 75ms)
[   +1 ms] Synced 0.0MB.
[   +1 ms] <- accept
[   +5 ms] Connected to _flutterView/0x10f823820.
[   +4 ms] Flutter run key commands.
[   +1 ms] r Hot reload. 🔥🔥🔥
[        ] R Hot restart.
[        ] h List all available interactive commands.
[   +3 ms] d Detach (terminate "flutter run" but leave application running).
[        ] c Clear the screen
[   +1 ms] q Quit (terminate the application on the device).
[   +1 ms] A Dart VM Service on iPad mini (6th generation) is available at: http://127.0.0.1:61785/rNnPTSlScS4=/
[ +723 ms] The Flutter DevTools debugger and profiler on iPad mini (6th generation) is available at:
                    http://127.0.0.1:9101?uri=http://127.0.0.1:61785/rNnPTSlScS4=/
[+22283 ms] DevFS: Deleting filesystem on the device
(file:///Users/rhof/Library/Developer/CoreSimulator/Devices/9240320C-09D6-4B8D-9ED1-AA8C992D61E0/data/Containers/Data/Application/D57ED6D6-A394-48
D7-8300-35ECEF33EE51/tmp/jankDM37ON/jank/)
[  +11 ms] DevFS: Deleted filesystem on the device
(file:///Users/rhof/Library/Developer/CoreSimulator/Devices/9240320C-09D6-4B8D-9ED1-AA8C992D61E0/data/Containers/Data/Application/D57ED6D6-A394-48
D7-8300-35ECEF33EE51/tmp/jankDM37ON/jank/)
[   +7 ms] executing: xcrun simctl terminate 9240320C-09D6-4B8D-9ED1-AA8C992D61E0 com.extraservings.jank
[ +218 ms] Service protocol connection closed.
[  +25 ms] Application finished.
[   +5 ms] "flutter run" took 63,098ms.
[ +255 ms] ensureAnalyticsSent: 188ms
[        ] Running 2 shutdown hooks
[   +2 ms] Shutdown hooks complete
[  +10 ms] exiting with code 0

Flutter Doctor output

Doctor output

[✓] Flutter (Channel master, 3.23.0-13.0.pre.162, on macOS 14.5 23F79 darwin-x64, locale en-CA)
    • Flutter version 3.23.0-13.0.pre.162 on channel master at /Users/rhof/work/flutterSDK
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 6bdebcf58d (45 minutes ago), 2024-06-07 13:20:25 -0700
    • Engine revision 1cdbebee19
    • Dart version 3.5.0 (build 3.5.0-236.0.dev)
    • DevTools version 2.36.0

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/rhof/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b829.9-10027231)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 15E204a
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2022.3)
    • 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+0-17.0.6b829.9-10027231)

[✓] VS Code (version 1.90.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.90.0

[✓] Connected device (4 available)
    • R.SE (mobile)                       • 00008030-000164E01445802E            • ios            • iOS 17.5.1 21F90
    • iPad mini (6th generation) (mobile) • 9240320C-09D6-4B8D-9ED1-AA8C992D61E0 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-17-4
      (simulator)
    • macOS (desktop)                     • macos                                • darwin-x64     • macOS 14.5 23F79 darwin-x64
    • Chrome (web)                        • chrome                               • web-javascript • Google Chrome 125.0.6422.142

[✓] Network resources
    • All expected network resources are available.

• No issues found!

[jonahwilliams]

So there is a simulator specific bug we're working on cherry picking here: flutter/engine#53205 . That may contribute.

That said, simulator performance is far from a priority. If something is really misbehaving we can try to take a look, but apples own profiling tools don't work on simulators.

[wilpar]

thanks @jonahwilliams yes I'm working on a last-gen intel MacBook pro. Seems related.

I guess for now I'll develop with --no-enable-impeller and hope for the best on release

Here are two videos of the affected app on the same screen, the difference is night and day.

Skia: https://youtu.be/6Fln2OXwMpk
Impeller: https://youtu.be/9liioCw6wwA

[jonahwilliams]

The looks similar to the rendering bug I fixed in 6bdebcf58d , but you seem to be on an engine revision after that change. Can you confirm the framework revision listed in the issue report is correct?

[wilpar]

I switched back to stable. Currently running:

✗ flutter --version
Flutter 3.22.2 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 761747b (3 days ago) • 2024-06-05 22:15:13 +0200
Engine • revision edd8546116
Tools • Dart 3.4.3 • DevTools 2.34.3

[jonahwilliams]

Sorry, I'm confused:

1. Is the video you posted from stable or master channel?
2. Are you observing similar performance issues on master channel?

[wilpar]

Sorry to confuse. The two videos from today are from my normal working environment. I thought you'd seen what you needed to see so went back to work mode. I added the videos to illustrate my original point.

If I see an update to 3.22.3 or higher, I'll test again and repoen if necessary.

Have a good weekend.

[jonahwilliams]

We can go ahead and leave this open for tracking. The cherry pick release for that bug hasn't gone out yet.