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Overview
BenchmarkDotNet runs .NET methods as benchmark experiments and automates warmup, iteration selection, statistical aggregation, runtime/job comparisons, diagnosers, and result export. It reduces common errors in hand-written microbenchmarks and produces shareable performance artifacts.
Features and best fit
Based on official documentation; not hands-on tested · Content checked:
Key features
Define benchmarks with attributes and a benchmark runner
Mark methods with [Benchmark] and execute them through BenchmarkRunner.Run<T>(), then expand experiments with parameters, baselines, and jobs.
Delegate warmup, iterations, and statistical processing to the runner
BenchmarkDotNet performs pilot and warmup work, chooses measurement iterations, aggregates results, and prints summary tables.
Sources: [1]
Best fit
Fits repeatable comparisons of optimizations and runtime configurations
It is useful when .NET teams need performance regressions or implementation alternatives to be compared through the same benchmark definition and controlled conditions.
Sources: [1]
Before adoption
Run optimized Release builds rather than Debug measurements
The Getting Started guide requires Release configuration, and the README warns about non-optimized assemblies, attached debuggers, and other conditions that can make measurements unreliable.
Control hardware, runtime, and background load and compare relative changes
Microbenchmarks are sensitive to their surroundings, so compare baselines under the same environment rather than treating isolated numbers from different systems as equivalent.
Sources: [1]
0.15.8 includes fixes for process deadlocks and WASM trimming
The 0.15.8 release fixes process-output deadlocks and WASM generated-project trimming among other issues, so automation should pin the intended version and review release changes.
Sources: [4]
Official sources
- [1]BenchmarkDotNet 0.15.8 README(2026-10-04)
- [2]BenchmarkDotNet 0.15.8 Getting Started(2026-10-04)
- [3]BenchmarkDotNet 0.15.8 project targets(2026-10-04)
- [4]BenchmarkDotNet 0.15.8 release(2026-10-04)
- [5]BenchmarkDotNet MIT license(2026-10-04)
Supplemental curator note
Microbenchmarks are sensitive to their environment, so avoid treating a single run as a performance guarantee. Run optimized Release builds and compare changes under controlled runtime, hardware, power, and background-load conditions.
Try it in 3 steps
- 1
Add BenchmarkDotNet 0.15.8 to a console project
Create a benchmark console application and pin stable version 0.15.8.
dotnet new console -n BdnDemo -f net10.0 && dotnet add BdnDemo/BdnDemo.csproj package BenchmarkDotNet --version 0.15.8 - 2
Create a minimal benchmark in Program.cs
Define one method with
[Benchmark]and invoke it through BenchmarkRunner.printf 'using BenchmarkDotNet.Attributes;\nusing BenchmarkDotNet.Running;\nBenchmarkRunner.Run<Bench>();\npublic class Bench { [Benchmark] public int Sum() => Enumerable.Range(1, 100).Sum(); }\n' > BdnDemo/Program.cs - 3
Run the benchmark in Release configuration
BenchmarkDotNet requires an optimized Release build. Results are printed and stored under BenchmarkDotNet.Artifacts.
dotnet run -c Release --project BdnDemo/BdnDemo.csproj
Growth
Growth trends · Last 30 days
11,506 Stars
Trend data is still being collected.
Development activity
Last 90 days · weekly
- Commits (last 30 days)
- 35
- Open PRs
- 39
Development activity is still being collected.
Built with
Categories and tags
Categories
GitHub data
GitHub dataView detailed GitHub data
GitHub Topics
- benchmark
- benchmarking
- c-sharp
- dotnet
- performance
- csharp
- hacktoberfest
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