Measure The Performance Of Your .NET Code Using BenchmarkDotNet

As developers, we are sometimes challenged with making a specific piece of code run quicker. We frequently need to pick which piece of code performs the best. Benchmarking gives us concrete measurements between different portions of code, allowing us to make verifiably right decisions based on performance. 

In this article, I will show you how to add a Benchmark to your project. Follow these steps

Step1

Create a console application

Step2

Add BenchmarkDotnet Nuget package by running the following command.

	dotnet add install BenchmarkDotNet

Step3

Create a class and create a public method and add the Benchmark attribute

Baseline you can mark a benchmark method or a job as a baseline. {alertSuccess}

 public class StringBenchmark
    {
        [Benchmark(Baseline =true)]
        public void StringConcatTest()
        {
            var result = "";
            for (int i = 0; i < 1000; i++)
            {
                result += $"Test {i}";
            }
        }
        [Benchmark]
        public void StringBuilderTest()
        {
            var result = new StringBuilder();
            for (int i = 0; i < 1000; i++)
            {
                result.Append($"Test {i}");
            }
        }
    }

Step4

Open program.cs and add the following code

class Program
    {
        static void Main(string[] args)
        {
            var summary = BenchmarkRunner.Run<StringBenchmark>();
        }
    }

Step 5

Open the command prompt and run the following command.

dotnet run -c Release

If you want to see memory related things like Garbage collection and memory allocation, then you add MemoryDiagnoser at the class level.