using BenchmarkDotNet.Running; var summary = BenchmarkRunner.Run (); Use code with caution. Copied to clipboard 4. Critical: Run in Release Mode
BenchmarkDotNet will refuse to run or give a stern warning if you are in Debug mode. Debug builds are significantly slower and lack the compiler optimizations that reflect real-world performance. dotnet run -c Release Use code with caution. Copied to clipboard 5. Essential Best Practices A Step by Step Guide to Benchmarking in .NET How to benchmark C# code using BenchmarkDotNet
In your Program.cs , call the BenchmarkRunner to execute your class. using BenchmarkDotNet
using BenchmarkDotNet.Attributes; using BenchmarkDotNet.Running; using System.Text; [MemoryDiagnoser] // Tracks RAM usage and GC collections public class StringBenchmarking { private const string Text = "Hello World"; [Benchmark] public string UseStringConcat() { string result = ""; for (int i = 0; i < 100; i++) result += Text; return result; } [Benchmark] public string UseStringBuilder() { var sb = new StringBuilder(); for (int i = 0; i < 100; i++) sb.Append(Text); return sb.ToString(); } } Use code with caution. Copied to clipboard 3. Initialize the Runner Debug builds are significantly slower and lack the
Benchmarking in .NET is famously difficult because the JIT compiler and runtime perform many "hidden" optimizations. is the industry-standard library that automates the heavy lifting—like warm-ups, overhead removal, and statistical analysis—to give you reliable results. 1. Setup Your Benchmark Project
Use the NuGet Gallery or the CLI to add the library: dotnet add package BenchmarkDotNet Use code with caution. Copied to clipboard 2. Design the Benchmark Class