Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using ProgrammingChallenge2.Codecs;

namespace ProgrammingChallenge2
{
    public class Program
    {
        public static void Main(string[] args)
        {
            // 1days * 24h * 60min * 60s = 2592000
            long messageCount = 1*24*60*60;

            var codecs = new List<ICodecFactory>()
            {
                new Codecs.JanReinhardt.JsonCodecFactory(),
                new Codecs.FlorianBader.AwesomeCodecFactory(),
                new Codecs.Matthid.CustomCodecFactory(),
                new Codecs.Matthid.ProtobufCodecFactory(),
                new Codecs.Matthid.StupidProtobufCodecFactory(),
                new Codecs.SebastianRoether.EntropyMaximizingCodecFactory(),
                new Codecs.SebastianRoether.StatelessCodecFactory(),
                //new Codecs.SebastianRoether.TotallyLegitCodecFactory(),
            };

            var results = codecs.Select(c => (name: c.Name, bytes: Run(messageCount, c)));

            var sortedResults = results.OrderBy(r => r.bytes).ToArray();

            Console.WriteLine("Results:");

            var slowest = sortedResults.Last();

            foreach(var r in sortedResults)
            {
                Console.WriteLine($"{r.name}: {r.bytes} Bytes  ({(double)slowest.bytes/r.bytes:F1}x)");
            }
        }

        private static long Run(long messageCount, ICodecFactory codecFactory)
        {
            var source = new DataSource();

            var seq = new TransmissionSequence();

            Console.WriteLine();
            Console.WriteLine("Start...");

            var totalBytesTransmitted = seq.Run(source, codecFactory.CreateEncoder(), codecFactory.CreateDecoder(), messageCount, false);

            Console.WriteLine($"Result for Codec '{codecFactory.Name}'");
            Console.WriteLine($"Total bytes transmitted: {totalBytesTransmitted}");
            Console.WriteLine(FormattableString.Invariant($"({totalBytesTransmitted/1024.0:F1}kB, {totalBytesTransmitted/(1024*1024):F1}MB)"));

            return totalBytesTransmitted;
        }
    }
}