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.NET Performance Profiling: dotTrace & PerfView Guide

Learn .NET performance profiling with dotTrace and PerfView. Find CPU, memory, and async bottlenecks in C# apps — step-by-step tutorial with code. Why .NET Performance Profiling Beats Guessing Every Time Every developer has been there: the app is slow, someone on the team says "it's probably the database," someone else blames the ORM, and an afternoon disappears into changing code that was never the problem. .NET performance profiling replaces that guesswork with measurement. Instead of asking "what do we think is slow?", a profiler answers "here is exactly where your CPU time, memory allocations, and wall-clock time went." In this guide, you'll learn how to find and fix real bottlenecks in C# applications using two of the best tools in the ecosystem: JetBrains dotTrace and Microsoft's free PerfView. The reason profiling matters so much is a hard statistical truth: performance problems are almost never evenly distributed. In most applica...