C# source generator performance has real impact on developer experience — every slow generator adds cost to every build and every IDE keystroke. This covers how to measure generator overhead using MSBuild binary logs, the ReportAnalyzer property, and dotnet-trace CPU profiling. The core optimization model is the incremental
Table of contents
Why Source Generator Performance MattersThe Two Performance Axes: Build Time and RuntimeHow the Incremental Source Generator Model Solves PerformanceMeasuring Source Generator Build PerformanceThe Cache Hit Rate: The Most Important MetricCommon Source Generator Performance Anti-PatternsSource Generator Optimization TechniquesSource Generator IDE ResponsivenessBenchmarking Your Source Generator ChangesFAQConclusionSort: