https://github.com/64j0/dotnet-builtin-metrics

This repository holds a very simple HTTP API that uses ASP.NET and Giraffe to exemplify the usage of .NET 8 built-in metrics feature
https://github.com/64j0/dotnet-builtin-metrics

Last synced: 2 days ago
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This repository holds a very simple HTTP API that uses ASP.NET and Giraffe to exemplify the usage of .NET 8 built-in metrics feature

• Host: GitHub
• URL: https://github.com/64j0/dotnet-builtin-metrics
• Owner: 64J0
• Created: 2024-01-14T22:17:40.000Z (10 months ago)
• Default Branch: master
• Last Pushed: 2024-01-17T01:29:31.000Z (10 months ago)
• Last Synced: 2024-01-17T08:26:03.295Z (10 months ago)
• Language: F#
• Size: 198 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.org

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README

        
#+TITLE: .NET Built-in Performance

#+AUTHOR: 64J0

The idea to create this project was born after watching this video from Nick

Chapsas named [[https://www.youtube.com/watch?v=8kDugxr3Hdg&ab_channel=NickChapsas][Measure Your Application's Performance in .NET]]. This repository

holds a very simple HTTP API that uses ASP.NET and Giraffe to exemplify what are

the collected metrics by with built-in .NET feature.

+ ASP.NET Core built-in metrics documentation: [[https://learn.microsoft.com/en-us/dotnet/core/diagnostics/built-in-metrics-aspnetcore?view=aspnetcore-8.0][link]].

+ Instrumentation documentation: [[https://learn.microsoft.com/en-us/dotnet/core/diagnostics/metrics-instrumentation?view=aspnetcore-8.0][link]].

+ View metrics in Grafana with OpenTelemetry and Prometheus: [[https://learn.microsoft.com/en-us/dotnet/core/diagnostics/metrics-collection?view=aspnetcore-8.0#view-metrics-in-grafana-with-opentelemetry-and-prometheus][link]].

** Visualize the metrics

One option is to use the [[https://learn.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-counters][dotnet-counters]] tool.

#+BEGIN_SRC bash :tangle no

  # restore our dotnet tools

  dotnet tool restore

  # start the server

  dotnet run

  # use curl to call the /ping endpoint

  # curl localhost:3000/ping

  # check Prometheus-style metrics on /metrics endpoint

  # in another terminal

  # list the process id of the dotnet processes

  dotnet dotnet-counters ps

  # start monitoring the server process id

  dotnet dotnet-counters monitor --process-id  --counters System.Runtime,MyApi.Ping

#+END_SRC

Example metrics:

[[./assets/example-metrics.png]]

+ It's probably with some bug since I'm using a pre-release version of the ~OpenTelemetry.Exporter.Prometheus.AspNetCore~ package.