I have an ASP.NET Core process running in Kubernetes. Suddenly something gone wrong and CPU usage jumped from 8% to 100% and settled at that level. Memory usage did not changed so it looks like an infinite loop in a thread.

What instruments can I use to diagnose what is happening in the process?

What should I do to be able to diagnose such problems in the future?

CodePudding user response：

.net core support some command that let us diagnose CPU high or Memory problem.

first, install tools

dotnet tool install --global dotnet-trace
dotnet tool install --global dotnet-counters

then we can use dotnet-trace ps to get the process id that we want to trace.

then use dotnet-counters command we can see the process using resource situation.

dotnet-counters monitor --counters System.Runtime[cpu-usage] -p 22884 --refresh-interval 1

more detail you can find Debug high CPU usage in .NET Core