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BenchmarkDotNet.md

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BenchmarkDotNET

https://www.nuget.org/packages/BenchmarkDotNet/

Simple Explanation

Benchmark.NET is a powerful benchmarking library for .NET applications that allows you to measure and compare the performance of different methods or algorithms.

Deep Explanation

Benchmark.NET is a free and open-source benchmarking library for .NET applications. It provides a simple and powerful way to measure and compare the performance of different parts of your code, such as methods or algorithms.

Using Benchmark.NET, you can easily create benchmarks that measure the execution time, memory allocation, and other performance metrics of your code. The library supports different types of benchmarks, including microbenchmarks that measure the performance of small code snippets, and macrobenchmarks that measure the performance of entire programs.

Benchmark.NET provides a rich set of features for benchmarking, including:

  • A powerful API for defining benchmarks using C# or F#.

  • Support for multiple iterations and multiple runs to ensure reliable and accurate results.

  • Automatic warm-up and overhead detection to ensure that benchmarks are properly calibrated.

  • Detailed reports and visualizations of benchmark results, including statistical analysis and comparison with other benchmarks.

  • Integration with other tools such as Visual Studio, ReSharper, and Azure DevOps.

With Benchmark.NET, you can easily identify performance bottlenecks, optimize your code, and compare the performance of different algorithms or libraries to make informed decisions.

Examples

Here is an example of how to create a simple benchmark using Benchmark.NET:

public class MyBenchmark
{
    [Benchmark]
    public void MyMethod()
    {
        // Code to benchmark goes here
    }
}

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

In this example, we define a simple benchmark called MyBenchmark that measures the performance of a method called MyMethod. We then use the BenchmarkRunner to run the benchmark and generate a summary of the results.

Here's an example of how the output format of a simple benchmark using Benchmark.NET might look like:

BenchmarkDotNet=v0.12.1, OS=Windows 10.0.18363.1316 (1909/November2019Update/19H2)
Intel Core i5-8265U CPU 1.60GHz (Whiskey Lake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.1.405
[Host]     : .NET Core 3.1.10 (CoreCLR 4.700.20.47201, CoreFX 4.700.20.47203), X64 RyuJIT
DefaultJob : .NET Core 3.1.10 (CoreCLR 4.700.20.47201, CoreFX 4.700.20.47203), X64 RyuJIT


|         Method |         Mean |       Error |      StdDev |
|--------------- |-------------:|------------:|------------:|
|       MyMethod |    41.12 ns  |   0.3013 ns  |   0.2670 ns |