MongoDriverAsyncSyncTests.cs

[TestFixture]
public class MongoDriverAsyncSyncTests
{
    private readonly IMongoCollection<SimpleDto> _collection;
    private readonly SimpleDto[] _dtosToInsert;

    public MongoDriverAsyncSyncTests()
    {
        string connectionString = "mongodb://localhost/MongoDriverAsyncSyncTests";
        string databaseName = new MongoUrl(connectionString).DatabaseName;
        _collection = new MongoClient(connectionString).GetDatabase(databaseName).GetCollection<SimpleDto>("SimpleDtos");
        _dtosToInsert = Enumerable.Range(0, 50000).Select(i => new SimpleDto { Id = Guid.NewGuid(), Value = i }).ToArray();
    }

    [Test]
    public void SyncVersion()
    {
        // Warm up
        for (int i = 0; i < 100; i++)
            _collection.InsertOne(new SimpleDto { Id = Guid.NewGuid() });
        _collection.DeleteMany(new BsonDocument()); // delete all

        // Measure
        var duration = Stopwatch.StartNew();
        foreach (var dto in _dtosToInsert)
            _collection.InsertOne(dto);
        duration.Stop();
        Console.WriteLine("Sync: " + duration.Elapsed);
    }

    [Test]
    public async Task AsyncVersion()
    {
        // Warm up
        for (int i = 0; i < 100; i++)
            await _collection.InsertOneAsync(new SimpleDto { Id = Guid.NewGuid() }).ConfigureAwait(false);
        _collection.DeleteMany(new BsonDocument()); // delete all

        // Measure
        var duration = Stopwatch.StartNew();
        foreach (var dto in _dtosToInsert)
            await _collection.InsertOneAsync(dto).ConfigureAwait(false);
        duration.Stop();
        Console.WriteLine("Async: " + duration.Elapsed);
    }

    public class SimpleDto
    {
        public Guid Id { get; set; }
        public int Value { get; set; }
    }
}

[Config(typeof(Config))]
public class MongoDriverAsyncSyncPerf
{
    private class Config : ManualConfig
    {
        public Config()
        {
            Add(new MemoryDiagnoser());
            Add(MarkdownExporter.GitHub);
            Add(Job.Default.WithLaunchCount(1).WithWarmupCount(2).WithTargetCount(20));
        }
    }

    private readonly IMongoCollection<SimpleDto> _collection;

    public MongoDriverAsyncSyncPerf()
    {
        string connectionString = "mongodb://192.168.1.11/MongoDriverAsyncSyncTests";
        string databaseName = new MongoUrl(connectionString).DatabaseName;
        _collection = new MongoClient(connectionString).GetDatabase(databaseName).GetCollection<SimpleDto>("SimplesPerf");
        _collection.DeleteMany(new BsonDocument());
    }

    [Benchmark(Baseline = true)]
    public void InsertOne() => _collection.InsertOne(new SimpleDto());

    [Benchmark]
    public void InsertOne_100()
    {
        for (int i = 0; i < 100; i++)
            _collection.InsertOne(new SimpleDto());
    }

    [Benchmark]
    public async Task InsertOneAsync() => await _collection.InsertOneAsync(new SimpleDto()).ConfigureAwait(false);

    [Benchmark]
    public async Task InsertOneAsync_100()
    {
        for (int i = 0; i < 100; i++)
            await _collection.InsertOneAsync(new SimpleDto()).ConfigureAwait(false);
    }

    [Test]
    public void Run()
    {
        Directory.SetCurrentDirectory(Path.GetDirectoryName(typeof(MongoDriverAsyncSyncPerf).Assembly.Location));
        var summary = BenchmarkRunner.Run<MongoDriverAsyncSyncPerf>();
        Console.WriteLine(summary);
    }

    public class SimpleDto
    {
        public BsonObjectId Id { get; set; }
    }
}

Local Mongo:
Sync: 00:00:08.6252968
Async: 00:00:12.1327196

Remote Mongo:
Sync: 00:00:21.6069787
Async: 00:00:21.8636328

Host Process Environment Information:
BenchmarkDotNet.Core=v0.9.9.0
OS=Microsoft Windows NT 6.3.9600.0
Processor=Intel(R) Core(TM) i7-5500U CPU 2.40GHz, ProcessorCount=4
Frequency=2338342 ticks, Resolution=427.6534 ns, Timer=TSC
CLR=MS.NET 4.0.30319.42000, Arch=64-bit ? [RyuJIT]
GC=Concurrent Workstation
JitModules=clrjit-v4.6.1055.0

Type=MongoDriverAsyncSyncPerf  Mode=Throughput  LaunchCount=1  
WarmupCount=2  TargetCount=20  

Method	Median	StdDev	Scaled	Scaled-SD	Gen 0	Gen 1	Gen 2	Bytes Allocated/Op
InsertOne	462.2316 us	59.5674 us	1.00	0.00	70.00	-	-	5 519,71
InsertOneAsync	577.4854 us	132.3485 us	1.23	0.30	152.80	-	-	10 695,80

Remote Mongo 3:
Sync: 00:00:23.6225098
Async: 00:00:26.5399851

Host Process Environment Information:
BenchmarkDotNet.Core=v0.9.9.0
OS=Microsoft Windows NT 6.3.9600.0
Processor=Intel(R) Core(TM) i7-5500U CPU 2.40GHz, ProcessorCount=4
Frequency=2338342 ticks, Resolution=427.6534 ns, Timer=TSC
CLR=MS.NET 4.0.30319.42000, Arch=64-bit ? [RyuJIT]
GC=Concurrent Workstation
JitModules=clrjit-v4.6.1055.0

Type=MongoDriverAsyncSyncPerf  Mode=Throughput  LaunchCount=1  
WarmupCount=2  TargetCount=20  

Method	Median	StdDev	Scaled	Scaled-SD	Gen 0	Gen 1	Gen 2	Bytes Allocated/Op
InsertOne	433.0183 us	14.8393 us	1.00	0.00	1.12	-	-	5 437,03
InsertOne_100	45,051.4189 us	1,810.8001 us	103.60	5.26	98.70	-	-	438 581,32
InsertOneAsync	491.7714 us	51.5949 us	1.17	0.12	2.48	-	-	10 708,15
InsertOneAsync_100	45,672.9597 us	1,077.7901 us	106.13	4.19	283.00	-	-	1 262 490,18