dotnet-benchmarkdotnet

Create and analyze .NET microbenchmarks using BenchmarkDotNet with diagnostics and CI exporters.

71|10|Updated Feb 11, 2026

Search Tags:#csharp #performance #optimization #benchmarking #dotnet #benchmarkdotnet

Ready to run

npx skills add https://github.com/wshaddix/dotnet-skills --skill dotnet-benchmarkdotnet-wshaddix

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: dotnet-benchmarkdotnet
Source: https://github.com/wshaddix/dotnet-skills/tree/main/skills/dotnet-benchmarkdotnet
Command: npx skills add https://github.com/wshaddix/dotnet-skills --skill dotnet-benchmarkdotnet-wshaddix

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you write and analyze microbenchmarks for .NET code, ensuring optimal performance and identifying bottlenecks using BenchmarkDotNet.

Core Features & Use Cases

Benchmark Setup: Configure and run benchmarks with attributes like [Benchmark] and [Params].
Performance Analysis: Utilize [MemoryDiagnoser] and [DisassemblyDiagnoser] to inspect allocations and JIT optimizations.
CI Integration: Configure exporters (JSON, HTML, Markdown) for automated reporting and artifact collection.
Use Case: You've developed a new algorithm in C# and need to prove its performance improvements over the existing solution. Use this Skill to set up benchmarks, run them in release mode, and analyze the results to quantify the gains.

Quick Start

Use the dotnet-benchmarkdotnet skill to set up a basic benchmark class for measuring string concatenation performance.

Frequently Asked Questions about dotnet-benchmarkdotnet

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I set up microbenchmarks for C# code using BenchmarkDotNet?▼

Set up .NET microbenchmarks by creating a class with the [Benchmark] attribute on methods and using [Params] to test varying inputs. BenchmarkDotNet handles the warmup, execution, and measurement phases automatically to quantify performance.

How does BenchmarkDotNet prevent dead code elimination during performance testing?▼

BenchmarkDotNet prevents dead code elimination by consuming return values internally during its measurement loops. This ensures the JIT compiler does not optimize away the benchmarked code, preventing measurement bias and ensuring accurate performance analysis.

Can I measure memory allocations and inspect JIT disassembly in .NET benchmarks?▼

Yes, apply [MemoryDiagnoser] to measure heap allocations per operation and [DisassemblyDiagnoser] to inspect JIT disassembly. These diagnostics reveal hidden allocation bottlenecks and verify hardware-level optimizations for your C# code.

What's the best way to integrate .NET performance benchmarking into a CI pipeline?▼

Integrate benchmarking into CI by configuring BenchmarkDotNet exporters to generate JSON, HTML, or Markdown reports. Run benchmarks in release mode and collect these generated artifacts to automate performance regression tracking across builds.

Why do my .NET benchmark results vary when measuring string concatenation performance?▼

String concatenation benchmark results vary due to measurement bias if not properly configured. Use BenchmarkDotNet's parameterized tests with [Params] and release mode execution to stabilize iterations and accurately compare string manipulation strategies.

Do I need to run BenchmarkDotNet in release mode to get accurate .NET performance results?▼

Yes, running in release mode is required for accurate .NET performance results. BenchmarkDotNet relies on release builds to enable JIT optimizations, preventing debug overhead from skewing microbenchmark measurements.