dotnet-counters not showing threadpool counters in .NET 10 After upgrading from .NET 9 to .NET 10

I just upgraded an ASP.NET MVC application from .NET 9 to .NET 10. The process was straightforward: I simply changed the target framework version in the project file and updated a few NuGet packages. The app is hosted in Kubernetes, so I also updated the ASP.NET image version in the Dockerfile.
I built and deployed everything, and it went smoothly—taking just about 10 minutes in total.

Next, I wanted to inspect the ThreadPool performance counters inside the running container.

downloaded dotnet-counters direct binaries from https://learn.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-counters 

copied to container with kubectl cp .

 Initially ran dotnet-counters from Windows Terminal (connected via kubectl exec).
→ The default System.Runtime counters loaded, but ThreadPool metrics (like threadpool-thread-count) were missing.
 

 

Switched to PuTTY (same kubectl exec session). → ThreadPool counters appeared.

 

 

The issue was specific to Windows Terminal—likely a display or ANSI escape sequence handling problem , resolution something.

 So  ran with counter filter then it showed

dotnet-counters monitor --process-id 1 --counters System.Runtime[threadpool-thread-count,threadpool-queue-length,threadpool-completed-items-count]

You can see  available counters via ./dotnet-counters.2 list , recently it gives a url to the documentation  https://learn.microsoft.com/dotnet/core/diagnostics/built-in-metrics.

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Comments

Post a Comment

Popular posts from this blog

Tool - excalidraw - Draw sequence diagrams flow charts

For a long time, I’ve been using WebSequenceDiagrams.com and SequenceDiagram.org to draw sequence diagrams. Both are great tools — but if you don’t use them regularly, it takes a bit of time to get back into the flow. Recently, I came across Excalidraw , It’s a simple, intuitive whiteboard where you can sketch sequence diagrams, flowcharts, architecture diagrams, or pretty much anything visual. The best part? It’s open source — you can check it out https://excalidraw.com/ (or even self-host it) here: github.com/excalidraw/excalidraw . If you haven’t tried it , Give It a try !
Read more

Reading SOAP / WCF client Request XML Response XML And HTTP Headers with system.servicemodel behavior and message inspector

To troubleshoot issues you need to log SOAP request, response XML, and response HTTP headers. You can use an endpoint behavior and a message inspector to achieve it. See the below sample — it will call a public service: https://www.crcind.com/csp/samples/SOAP.Demo.cls Project File <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <OutputType>Exe</OutputType> <TargetFramework>net9.0</TargetFramework> <ImplicitUsings>enable</ImplicitUsings> <Nullable>enable</Nullable> </PropertyGroup> <ItemGroup> <PackageReference Include="System.ServiceModel.Http" Version="8.1.2" /> </ItemGroup> </Project> Program.cs using SoapAddIntegerDemo; using System; using System.ServiceModel; using System.Threading.Tasks; class Program { static async Task Main() { var binding = new BasicHttpBinding(); binding.Security.Mode = Basic...
Read more

Welcome

Welcome to Daily Dev Adventure — a place where I share the real, unfiltered bits of a developer’s life. Not just code snippets and tech tutorials, but the everyday adventures that come with building software — debugging chaos, little victories, unexpected bugs, and those “aha!” moments that make it all worth it.
Read more