Using the profiling tools that are built into Visual Studio (VS) can be very informative to understand the CPU and memory usage of your code. You can also see the time taken for certain operations. These Application Insights tools can be integrated into Azure for when you deploy your app to a cluster of servers; however, you can still use them locally without anything being sent to the cloud. You don't need to add any code to your program as the framework is instrumented automatically.
Application Insights available with VS 2017 can perform something similar to MiniProfiler and Glimpse. It can not only tell you how your servers are performing, but also show you what performance on the client side looks like via some embedded JavaScript ...
