Collecting Concurrency Data for an ASP.NET Web Application Using the Profiler Command Line
The concurrency method of Visual Studio Profiling Tools enables you to collect resource contention data.
Only the /start:concurrency,resourceonly option is supported for Web applications. Collecting thread activity and visualization data by using the /start:concurrency or /start:concurrency,threadonly option is not supported.
Attach the profiler to a running ASP.NET application
Profiling ASP.NET Applications
Profile by using the sampling method
Profile by using the instrumentation method
Profile memory allocation and garbage collection
Profiling Concurrency Issues
Profile stand-alone (client) applications