Logging options for capturing ASP.NET Core logs as ETW events

AspNetCore.wprp

<?xml version="1.0" encoding="utf-8" standalone='yes'?>

<WindowsPerformanceRecorder Version="1.0">
  <Profiles>

    <EventCollector
      Id="AspNetCoreEventCollector"
      Name="ASP.NET Core Event Collector">

      <BufferSize Value="4096"/>
      <Buffers Value="256"/>
    </EventCollector>

    <EventProvider
      Id="AspNetCore-provider"
      Name="*Microsoft-Extensions-Logging" />

    <Profile
        Id="AspNetCore_Logging.Verbose.File"
        LoggingMode="File"
        Name="AspNetCore_Logging"
        DetailLevel="Verbose"
        Description="Log events from ASP.NET Core">
      <Collectors>
        <EventCollectorId Value="AspNetCoreEventCollector">
          <EventProviders>
            <EventProviderId Value="AspNetCore-provider" />
          </EventProviders>
        </EventCollectorId>
      </Collectors>
    </Profile>

    <Profile
        Id="AspNetCore_Logging.Verbose.Memory"
        LoggingMode="Memory"
        Name="AspNetCore_Logging"
        DetailLevel="Verbose"
        Description="Log events from ASP.NET Core"
        Base="AspNetCore_Logging.Verbose.File">
    </Profile>

  </Profiles>
</WindowsPerformanceRecorder>

Capture and view instructions with dotnet-trace.md

• Install the dotnet-trace tool
  • dotnet new tool-manifest (If you want to install tools locally)
  • dotnet tool install dotnet-trace (--global) (--version 3.0.0-*)
• List processes with dotnet trace list-processes
• Start capturing for a process with dotnet trace collect -p <<pid>> --providers Microsoft-Extensions-Logging -o <<outputpath>>.nettrace
• Open PerfView and navigate to the folder containing the ETL file.
• Double click on it.
• Go to events
• On the left column select Microsoft-Extensions_Logging/FormattedMessage
• Filter to the Process ID you care about
• On the columns to display add the following columns LoggerName EventName FormattedMessage

Capture and view instructions.md

• Start collection with wpr -start .\AspNetCore.wprp (Requires admin priviledges)
• End collection with wpr -stop <<path>>.etl
• Open PerfView and navigate to the folder containing the ETL file.
• Double click on it.
• Go to events
• On the left column select Microsoft-Extensions_Logging/FormattedMessage
• Filter to the Process ID you care about
• On the columns to display add the following columns LoggerName EventName FormattedMessage

EnvironmentVariables.md

Environment variables for setting up debug logging in ETW

$env:ASPNETCORE_Logging__EventSource__LogLevel__Default = "Debug";
$env:ASPNETCORE_Logging__EventSource__LogLevel__Microsoft = "Debug";
$env:ASPNETCORE_Logging__EventSource__IncludeScopes = "true";