[Benchmark] ToArrayVsToList

ToArrayVsToList.cs

namespace ToArrayVsToList
{
    using System;
    using System.Linq;
    using System.Collections.Generic;
    using BenchmarkDotNet.Attributes;
    using BenchmarkDotNet.Running;

    [MemoryDiagnoser]
    public class ToArrayVsToList
    {
        private IEnumerable<string> data;

        [Params(200, 10_000)]
        public int Length { get; set; }

        [GlobalSetup]
        public void Setup()
        {
            this.data = Enumerable.Repeat(string.Empty, this.Length);
        }

        [Benchmark]
        public string[] ToArray() => data.ToArray();

        [Benchmark]
        public List<string> ToList() => data.ToList();
    }

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