Request threading in ASP .NET and WCF
Dustin Metzgar recently posted an entry centered around understanding how ASP .NET and WCF work in order to avoid unnecessarily blocking threads. He used a couple of different tools to examine the problem, including the Concurrency Visualizer. See his entry here: https://blogs.msdn.com/b/dmetzgar/archive/2011/06/14/request-threading-in-asp-net-and-wcf.aspx
James Rapp – Parallel Computing Platform