Build Perf Diagnostics
by dotnet0608d8924cd3MIT5.5K starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated today
Diagnose MSBuild build performance bottlenecks using binary log analysis. USE FOR: identifying why builds are slow by analyzing binlog performance summaries, detecting ResolveAssemblyReference (RAR) taking >5s, Roslyn analyzers consuming >30% of Csc time, single targets dominating >50% of build time, node utilization below 80%, excessive Copy tasks, NuGet restore running every build. Covers timeline analysis, Target/Task Performance Summary interpretation, and 7 common bottleneck categories. Use after build-perf-baseline has established measurements. DO NOT USE FOR: establishing initial baselines (use build-perf-baseline first), fixing incremental build issues (use incremental-build), parallelism tuning (use build-parallelism), non-MSBuild build systems.
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npx skills add https://github.com/dotnet/skills/tree/0608d8924cd3173411e36650a7a01b4063e1f55a/plugins/dotnet-msbuild/skills/build-perf-diagnosticsSource and attribution
Source:dotnet/skillsinplugins/dotnet-msbuild/skills/build-perf-diagnosticsat commit0608d89
License: MIT
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