JsonBenchmark.cs

using System.Collections.Generic;
using BenchmarkDotNet.Attributes; // Library for benchmarking
using BenchmarkDotNet.Running; // Library for running benchmarks
using Newtonsoft.Json; // Library for JSON serialization

namespace JsonBenchmark
{
    public class Product
    {
        public int Id { get; set; }
        public string Name { get; set; } = string.Empty;
        public string Description { get; set; } = string.Empty;
        public double Price { get; set; } // Price of the product
        public string Category { get; set; } = string.Empty;
    }

    public class Program
    {
        static void Main(string[] args)
        {
            // Runs the benchmark defined in the JsonComparisons class
            BenchmarkRunner.Run<JsonComparisons>();
        }
    }

    // Benchmark class for comparing JSON serialization methods
    [MemoryDiagnoser] // Enables memory diagnostics for benchmarks
    [RankColumn] // Adds a column to display the rank of each benchmark
    public class JsonComparisons
    {
        private readonly List<Product> _products; // List of products to be serialized

        [Params(10, 100, 1000)] // Specifies different values for the number of products
        public int NumberOfProducts { get; set; } // Parameter to control the number of products

        // Constructor to initialize the list of products
        public JsonComparisons()
        {
            _products = new List<Product>();
            for (int i = 0; i < NumberOfProducts; i++)
            {
                // Populates the list of products with dummy data
                _products.Add(new Product
                {
                    Id = i + 1,
                    Name = $"Name {i + 1}",
                    Category = $"Category {i + 1}",
                    Description = $"Description {i + 1}",
                    Price = i + 1
                });
            }
        }

        // Benchmark method for serializing using Newtonsoft.Json
        [Benchmark]
        public string NewtonsoftSerialize() => JsonConvert.SerializeObject(_products);

        // Benchmark method for serializing using System.Text.Json
        [Benchmark]
        public string SystemTextJsonSerialize() => System.Text.Json.JsonSerializer.Serialize(_products);
    }
}