dotTrace is a performance profiler for .NET applications that works right in Visual Studio/JetBrains Rider and provides great ways to detect and analyze performance bottlenecks. dotTrace helps you locate performance bottlenecks in a variety of .NET applications, including desktop applications, .NET Core, ASP.NET applications hosted on IIS or IIS Express web servers, Mono and Unity applications, WCF services, Windows services, Universal Windows Platform applications, and unit tests. Unlike "classic" performance profiling which only lets you measure method call execution time, timeline profiling reveals how calls are distributed in time. It allows for diagnosing performance issues where the order of events matters, such as UI freezes, excessive garbage collection, uneven workload distribution, inefficient file I/O, and more. You can slice and dice profiling data using filters, the call tree, or diagrams.