Open
Description
This is from a fully no-op build of a reference source project that doesn't have any dependencies:
C:\git\runtime4>.\.dotnet\dotnet.exe msbuild /t:Build /v:minimal /clp:performancesummary C:\git\runtime4\src\libraries\System.Runtime\ref\System.Runtime.csproj
System.Runtime -> C:\git\runtime4\artifacts\bin\System.Runtime\ref\Debug\net9.0\System.Runtime.dll
Project Evaluation Performance Summary:
557 ms C:\git\runtime4\src\libraries\System.Runtime\ref\System.Runtime.csproj 1 calls
Project Performance Summary:
347 ms C:\git\runtime4\src\libraries\System.Runtime\ref\System.Runtime.csproj 1 calls
347 ms Build 1 calls
Target Performance Summary:
0 ms ResGen 1 calls
0 ms PrepareResourceNames 1 calls
0 ms PrepareResources 1 calls
0 ms AfterResGen 1 calls
0 ms BeforeResGen 1 calls
0 ms ResolvePackageDependenciesForBuild 1 calls
0 ms GetReferenceAssemblyPaths 1 calls
0 ms CreateCustomManifestResourceNames 1 calls
0 ms ValidateCommandLineProperties 1 calls
0 ms GenerateSourceLinkFile 1 calls
0 ms InitializeSourceControlInformation 1 calls
0 ms CreateSatelliteAssemblies 1 calls
0 ms BeforeCompile 1 calls
0 ms ConfigureGenerators 1 calls
0 ms AfterBuild 1 calls
0 ms _CopySourceItemsToOutputDirectory 1 calls
0 ms GetFrameworkPaths 1 calls
0 ms CoreBuild 1 calls
0 ms SetWin32ManifestProperties 1 calls
0 ms BeforeBuild 1 calls
0 ms GenerateMSBuildEditorConfigFile 1 calls
0 ms Deploy 1 calls
0 ms AfterCompile 1 calls
0 ms BeforeResolveReferences 1 calls
0 ms Compile 1 calls
0 ms BuildOnlySettings 1 calls
0 ms ResolveLockFileAnalyzers 1 calls
0 ms EnableIntermediateOutputPathMismatchWarning 1 calls
0 ms _CustomizeResourceNames 1 calls
0 ms PrepareProjectReferences 1 calls
0 ms PrepareForRun 1 calls
0 ms IncludeTransitiveProjectReferences 1 calls
0 ms GenerateAssemblyInfo 1 calls
0 ms BinPlace 1 calls
0 ms GetTargetPath 1 calls
0 ms _AddOutputPathToGlobalPropertiesToRemove 1 calls
0 ms Build 1 calls
0 ms AfterResolveReferences 1 calls
0 ms _SetTargetFrameworkMonikerAttribute 1 calls
0 ms ResolveReferences 1 calls
0 ms VerifyBuildFlags 1 calls
0 ms _PopulateCommonStateForGetCopyToOutputDirectoryItems 1 calls
0 ms _DefaultMicrosoftNETPlatformLibrary 1 calls
0 ms _CheckForUnsupportedHostingUsage 1 calls
0 ms _ComputeNETCoreBuildOutputFiles 1 calls
0 ms CopyAdditionalFiles 1 calls
0 ms _ComputeUserRuntimeAssemblies 1 calls
0 ms IgnoreJavaScriptOutputAssembly 1 calls
0 ms _BeforeVBCSCoreCompile 1 calls
0 ms _GenerateResxSource 1 calls
0 ms _CheckAndUnsetUnsupportedPrefer32Bit 1 calls
0 ms _CheckForObsoleteDotNetCliToolReferences 1 calls
0 ms ShimReferencePathsWhenCommonTargetsDoesNotUnderstandReferenceAssemblies 1 calls
0 ms _CheckForUnsupportedCppNETCoreVersion 1 calls
0 ms UseTargetingPackForAssemblySearchPaths 1 calls
0 ms FindReferenceAssembliesForReferences 1 calls
0 ms _CheckForUnsupportedArtifactsPath 1 calls
0 ms ResolveLockFileCopyLocalFiles 1 calls
0 ms ResolveSDKReferences 1 calls
0 ms AddOSPlatformAttributes 1 calls
0 ms GetAssemblyVersion 1 calls
0 ms RemoveSupportedOSTargetPlatformAttributeFromProjects 1 calls
0 ms ExpandSDKReferences 1 calls
0 ms GenerateMSBuildEditorConfigFileShouldRun 1 calls
0 ms AddImplicitDefineConstants 1 calls
0 ms _SplitProjectReferencesByFileExistence 1 calls
0 ms _BatchGenerateResxSource 1 calls
0 ms GetTargetPathWithTargetPlatformMoniker 1 calls
0 ms _InitializeAssemblyVersion 1 calls
0 ms _ComputeReferenceAssemblies 1 calls
0 ms _CheckForLanguageAndFeatureCombinationSupport 1 calls
0 ms CoreResGen 1 calls
0 ms _ComputeSkipAnalyzers 1 calls
0 ms _GenerateCompileInputs 1 calls
0 ms _GetProjectJsonPath 1 calls
0 ms _CheckContainersPackage 1 calls
0 ms _GenerateSatelliteAssemblyInputs 1 calls
0 ms _CheckForCompileOutputs 1 calls
0 ms ValidateReferenceAssemblyProjectReferencesAndTargetFramework 1 calls
0 ms _GetCopyToOutputDirectoryItemsFromThisProject 1 calls
0 ms AddGlobalAnalyzerConfigForPackage_MicrosoftCodeAnalysisCSharpCodeStyle 1 calls
0 ms ResolveProjectReferences 1 calls
1 ms ResolveAssemblyReferences 1 calls
1 ms _CheckForUnsupportedNETCoreVersion 1 calls
1 ms _BlockWinMDsOnUnsupportedTFMs 1 calls
1 ms GetBinPlaceItems 1 calls
1 ms _GetCopyToOutputDirectoryItemsFromTransitiveProjectReferences 1 calls
1 ms FlagNetStandard1xDependencies 1 calls
1 ms ResolveKeySource 1 calls
1 ms ResolveLockFileReferences 1 calls
1 ms _ComputePackageReferencePublish 1 calls
1 ms GetAssemblyAttributes 1 calls
1 ms SplitResourcesByCulture 1 calls
1 ms GenerateBuildDependencyFile 1 calls
1 ms _TouchLastBuildWithSkipAnalyzers 1 calls
2 ms CoreGenerateAssemblyInfo 1 calls
2 ms CoreCompile 1 calls
2 ms AssignTargetPaths 1 calls
2 ms CheckForImplicitPackageReferenceOverrides 1 calls
2 ms IncrementalClean 1 calls
2 ms ValidateExecutableReferences 1 calls
2 ms _GenerateCompileDependencyCache 1 calls
2 ms _GetRestoreProjectStyle 1 calls
2 ms CheckForDuplicateItems 1 calls
3 ms UpdateAspNetToFrameworkReference 1 calls
3 ms GenerateNETCompatibleDefineConstants 1 calls
3 ms ApplyImplicitVersions 1 calls
3 ms GenerateTargetFrameworkMonikerAttribute 1 calls
3 ms _HandlePackageFileConflicts 1 calls
3 ms CreateGeneratedAssemblyInfoInputsCacheFile 1 calls
4 ms _CheckForInvalidConfigurationAndPlatform 1 calls
4 ms _SetEmbeddedWin32ManifestProperties 1 calls
4 ms _ComputeToolPackInputsToProcessFrameworkReferences 1 calls
5 ms BinPlaceFiles 2 calls
6 ms _CleanGetCurrentAndPriorFileWrites 1 calls
6 ms CopyFilesToOutputDirectory 1 calls
7 ms ResolvePackageAssets 1 calls
7 ms GenerateMSBuildEditorConfigFileCore 1 calls
9 ms CollectPackageReferences 1 calls
12 ms GetCopyToOutputDirectoryItems 1 calls
22 ms _CollectTargetFrameworkForTelemetry 1 calls
42 ms _GetProjectReferenceTargetFrameworkProperties 1 calls
45 ms PrepareForBuild 1 calls
102 ms GetBinPlaceTargetFramework 1 calls
Task Performance Summary:
0 ms AssignCulture 1 calls
0 ms CheckForUnsupportedWinMDReferences 1 calls
0 ms ConvertToAbsolutePath 1 calls
0 ms Delete 1 calls
0 ms ResolveKeySource 1 calls
0 ms FindAppConfigFile 1 calls
0 ms ApplyImplicitVersions 1 calls
0 ms JoinItems 1 calls
1 ms RemoveDuplicates 2 calls
1 ms SetRidAgnosticValueForProjects 1 calls
1 ms MSBuild 1 calls
1 ms Touch 1 calls
1 ms ValidateExecutableReferences 1 calls
1 ms CheckForDuplicateNuGetItemsTask 1 calls
1 ms CheckForImplicitPackageReferenceOverrides 1 calls
1 ms AssignTargetPath 6 calls
1 ms ReadLinesFromFile 1 calls
1 ms Hash 2 calls
2 ms CheckIfPackageReferenceShouldBeFrameworkReference 2 calls
2 ms GetRestoreProjectStyleTask 1 calls
2 ms CheckForDuplicateItems 3 calls
2 ms FindUnderPath 5 calls
2 ms ResolvePackageFileConflicts 1 calls
2 ms Message 5 calls
3 ms WriteLinesToFile 2 calls
3 ms GenerateMSBuildEditorConfig 1 calls
3 ms GetFrameworkPath 1 calls
4 ms AllowEmptyTelemetry 1 calls
5 ms ResolvePackageAssets 1 calls
7 ms MakeDir 1 calls
8 ms CallTarget 2 calls
8 ms Copy 3 calls
99 ms ChooseBestTargetFrameworksTask 1 calls
Binlog details:
A few observations:
- Reference source projects never target OS specific TFMs. All inbox libraries target
$(NetCoreAppCurrent)already so this entire calculation is unnecessary. - There might be an opportunity to skip this entire logic. Neither the
GetBinPlaceTargetFrameworknor theBinPlaceFilestargets define inputs & outputs so they always run. I wonder if the entry point targetBinPlacecould already define appropriate inputs & outputs. - The time it takes to evaluate the project is extremely high. I will file a separate issue for that: Poor project evaluation performance for project at least under src/libraries #105139
@dotnet/area-infrastructure-libraries