This repository comes from a good presentation of Damian Edwards and David Fowler (two awesome guys from the .Net Core team) about Diagnosing issues in your code.
Simple story:
- One project is a little Hello world web application with 4 methods
- Good old full synchronous execution, works but not very efficient
- Modern app with legacy services: async-over-sync, not best but works
- Old app code using modern apis: sync-over-async, shows dead IIS (☠) because of thread starvation
- Full async, shows unlimited web scale
[Source code]
https://github.com/davidfowl/NdcLondon2018
[Youtube] https://www.youtube.com/watch?v=RYI0DHoIVaA
- Open the repository folder in VS Code
- Open two terminal windows (CTRL+`)
- Navigate in the left to ~/Requestor
- Navigate in the right to ~/Threading
Then you can dotnet run the web application in the right terminal and it shows Available threads and handled requests.
On the left side you can dotnet run <method name> where method name is one of the following
| dotnet run <parameter> | comment |
|---|---|
| hello | good old sync |
| hello-async-over-sync | modern controller over old services |
| hello-sync-over-async | ☠ can kill the server, must close terminal |
| hello-async | scales! |
