I've one .NET application (.NET 4.5 and IIS 8.5), the application spends near all the time in one call to one external service (as you can see in the pure path tree):
But dynatrace shows the 50% of the time in the web server and the other 50% in the external service:
Also in the pure path hotspots:
Ps: the application is 100% asynchronous, maybe these are the reason?
any ideas about this? I think it's wrong because in the TX Flow the time is duplicated and the problem seems to be in the web server but the time is spent in one external service call...
All pure paths from this application have the same problem, also without calling external services.