title: Azure App Service stuck on 100% CPU usage even though all services are stopped
body: <p>I switched today to one app service with two deployment slots for integration and production instead of two app services running on the same App Service Plan.
  Now I noticed that since my last swap (which took over 7 minutes) my CPU usage is constantly on 100% which so far never happened before when I had the two app services and which does not really make sense since the application is not doing anything. Also I stopped all my App Services and the usage is still on 100%. My integration slot is not even able to start because it takes too long.</p>
  <p>As you can see from the graph, it used to spike from time to time before, but it always went down pretty fast again as well. now it just stays up</p>
  <p><a href="https://i.stack.imgur.com/at3Sg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/at3Sg.png" alt="enter image description here" /></a></p>
  <p>The programm is a blazor WASM project with a asp.net core backend. It runs on a S1 plan. In that time frame where the CPU usage was so high no one was even activly using the application, which makes it even stranger.</p>
  <p>What is happening here and how can I mitigate this?</p>