ProtoWriter.DemandSpace Benchmark

PerfTestProgram.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;
using ProtoBuf;
using ProtoBuf.Meta;

namespace PerfTests
{
    public class Program
    {
        static void Main(string[] args)
        {
            BenchmarkRunner.Run<Program>();
            Console.ReadLine();
        }

        private RuntimeTypeModel _model = CreateModel();
        private DummDto _dto = DummDto.Create();
        private MemoryStream _memoryStream;

        [GlobalSetup]
        public void Setup()
        {
            _memoryStream = new MemoryStream();
            _memoryStream.SetLength(0);
            _model.Serialize(_memoryStream, _dto);
            _memoryStream.Position = 0;
        }

        [Benchmark]
        public void RunSerializer()
        {
            for (int i = 0; i < 100_000; i++)
            {
                _memoryStream.Position = 0;

                using (ProtoWriter writer = new ProtoWriter(_memoryStream, _model, null))
                {
                    _model.Serialize(writer, _dto);
                }
            }
        }
        
        static RuntimeTypeModel CreateModel()
        {
            var model = TypeModel.Create();
            model.Add(typeof(DummDto), true);
            return model;
        }
    }

    [ProtoContract]
    public class DummDto
    {
        [ProtoMember(1)]
        public int IntField1 { get; set; }

        [ProtoMember(2)]
        public int IntField2 { get; set; }

        [ProtoMember(3)]
        public int IntField3 { get; set; }

        [ProtoMember(4)]
        public long LongField1 { get; set; }

        [ProtoMember(5)]
        public long LongField2 { get; set; }

        [ProtoMember(6)]
        public long LongField3 { get; set; }

        [ProtoMember(7)]
        public string StringField1 { get; set; }

        [ProtoMember(8)]
        public string StringField2 { get; set; }

        [ProtoMember(9)]
        public string StringField3 { get; set; }

        public static DummDto Create()
        {
            return new DummDto
            {
                IntField1 = 1,
                IntField2 = 2,
                IntField3 = 323,
                LongField1 = 468678,
                LongField2 = 52323443,
                LongField3 = 61542134234,
                StringField1 = "abc",
                StringField2 = "adsfasdf",
                StringField3 = "qewrwtr"
            };
        }         
    }
}