C#•4d ago

csc.exe takes 140 Seconds to build one specific Project

this here is from dotnet build -bl

18>       17 ms  CallTarget                                 3 calls
18>       17 ms  CheckForDuplicateItems                     3 calls
18>       26 ms  GenerateDepsFile                           1 calls
18>       34 ms  ResolvePackageFileConflicts                1 calls
18>       54 ms  MSBuild                                    4 calls
18>      244 ms  ResolveAssemblyReference                   1 calls
18>    143783 ms  Csc                                        1 calls

18>       17 ms  CallTarget                                 3 calls
18>       17 ms  CheckForDuplicateItems                     3 calls
18>       26 ms  GenerateDepsFile                           1 calls
18>       34 ms  ResolvePackageFileConflicts                1 calls
18>       54 ms  MSBuild                                    4 calls
18>      244 ms  ResolveAssemblyReference                   1 calls
18>    143783 ms  Csc                                        1 calls

the csc took 140ms to build a specific project, while other projects run fine it has no special dependencies and analyzer, it only has LoggerMessage Source Generator How can I debug what takes so long to build?

2 Replies

ElbanOP•3d ago

also in the MSBuild Structed Log Viewer inside the CoreCompile Target ist only the Csc Task that takes long, somehow I'm in a blackbox and can't figure it out seems to be an issue with the CSharpDiagnosticAnalyzerApiUsageAnalyzer see conversation here: https://discord.com/channels/143867839282020352/598678594750775301/1308106236004270110

MODiX•3d ago

Elban

yea it seems to be like the Microsoft.CodeAnalysis.CSharp.Analyzers, Version=3.3.5.2003 has an issue on my side

Microsoft (R) Visual C# Compiler version 4.12.0-3.24523.10 (16f58fa3)
  Copyright (C) Microsoft Corporation. All rights reserved.
  NOTE: Elapsed time may be less than analyzer execution time because analyzers can run concurrently.
  Total analyzer execution time: 270.200 seconds.
  Time (s)    %   Analyzer
  267.852   99   Microsoft.CodeAnalysis.CSharp.Analyzers, Version=3.3.5.2003, Culture=neutral, PublicKeyToken=31bf3856ad364e35
  267.817   99      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerApiUsageAnalyzer (RS1022)
  0.021   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.CSharpImmutableObjectMethodAnalyzer (RS1014)
  0.010   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpRegisterActionAnalyzer (RS1002, RS1003, RS1006, RS1012, RS1013)
  0.002   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpReportDiagnosticAnalyzer (RS1005)
  0.001   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerFieldsAnalyzer (RS1008)
  <0.001   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.CSharpUpgradeMSBuildWorkspaceAnalyzer (RS1023)
  1.077   <1   Microsoft.AspNetCore.App.Analyzers, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
...

Microsoft (R) Visual C# Compiler version 4.12.0-3.24523.10 (16f58fa3)
  Copyright (C) Microsoft Corporation. All rights reserved.
  NOTE: Elapsed time may be less than analyzer execution time because analyzers can run concurrently.
  Total analyzer execution time: 270.200 seconds.
  Time (s)    %   Analyzer
  267.852   99   Microsoft.CodeAnalysis.CSharp.Analyzers, Version=3.3.5.2003, Culture=neutral, PublicKeyToken=31bf3856ad364e35
  267.817   99      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerApiUsageAnalyzer (RS1022)
  0.021   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.CSharpImmutableObjectMethodAnalyzer (RS1014)
  0.010   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpRegisterActionAnalyzer (RS1002, RS1003, RS1006, RS1012, RS1013)
  0.002   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpReportDiagnosticAnalyzer (RS1005)
  0.001   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerFieldsAnalyzer (RS1008)
  <0.001   <1      Microsoft.CodeAnalysis.CSharp.Analyzers.CSharpUpgradeMSBuildWorkspaceAnalyzer (RS1023)
  1.077   <1   Microsoft.AspNetCore.App.Analyzers, Version=8.0.11.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
...

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csc.exe takes 140 Seconds to build one specific Project