It allows the user to investigate the contents of the managed heap, the behavior of the garbage collector, and the allocation patterns (including call-graph analysis) of the program being profiled.
The latest version, 4.5, released in November 2012, allows for profiling of .NET 2.0, 3.0, 3.5, 4.0 or 4.5 managed code as well as Silverlight apps.
[1] The source code was originally included under the Microsoft Limited Reciprocal License (MS-LRL) and hosted on CodePlex.
Therefore, it is not the right tool to find out where time is spent – use other profilers to profile the CPU usage of an application.
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