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LiveInternet.ru:
: 17.03.2011
:
:
: 51

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IoC

, 25 2017 . 12:59 +

, , , , Stef'an J"okull Sigurdarson IoC , .NET Core, BenchmarkDotNet instance resolving performance. FsContainer.


image


1.2.0


.NET Core ( , ) , , . - - 20 .


:


public object Resolve(Type type)
{
    var instance = _bindingResolver.Resolve(this, GetBindings(), type);

    if (!_disposeManager.Contains(instance))
    {
        _disposeManager.Add(instance);
    }

    return instance;
}

, benchmark'- ( ), , Resolve . , resolve instance _disposeManager container.Dispose(). .. List, Contains, , 2 side-effect'a:


  1. , Contains, GetHashCode ;
  2. .. ( resolve TransientLifetimeManager), List , 2 ( 20 );

, , , , , ( ) _disposeManager , IDisposable.


if (instance is IDisposable && !_disposeManager.Contains(instance))
{
    _disposeManager.Add(instance);
}

, :


Method Mean Error StdDev Scaled ScaledSD Gen 0 Gen 1 Allocated
Direct 13.77 ns 0.3559 ns 0.3655 ns 1.00 0.00 0.0178 - 56 B
LightInject 36.95 ns 0.1081 ns 0.0902 ns 2.69 0.07 0.0178 - 56 B
SimpleInjector 46.17 ns 0.2746 ns 0.2434 ns 3.35 0.09 0.0178 - 56 B
AspNetCore 71.09 ns 0.4592 ns 0.4296 ns 5.17 0.14 0.0178 - 56 B
Autofac 1,600.67 ns 14.4742 ns 12.8310 ns 116.32 3.10 0.5741 - 1803 B
StructureMap 1,815.87 ns 18.2271 ns 16.1578 ns 131.95 3.55 0.6294 - 1978 B
FsContainer 2,819.01 ns 6.0161 ns 5.3331 ns 204.85 5.24 0.4845 - 1524 B
Ninject 12,812.70 ns 255.5191 ns 447.5211 ns 931.06 39.95 1.7853 0.4425 5767 B

.


1.2.1


, , . ConcurrentDictionary, (Resolve), - , . 


private readonly IDictionary> _ctorCache = 
    new ConcurrentDictionary>();

, 30%:


Method Mean Error StdDev Scaled ScaledSD Gen 0 Gen 1 Gen 2 Allocated
Direct 13.50 ns 0.2240 ns 0.1986 ns 1.00 0.00 0.0178 - - 56 B
LightInject 36.94 ns 0.0999 ns 0.0886 ns 2.74 0.04 0.0178 - - 56 B
SimpleInjector 46.40 ns 0.3409 ns 0.3189 ns 3.44 0.05 0.0178 - - 56 B
AspNetCore 70.26 ns 0.4897 ns 0.4581 ns 5.21 0.08 0.0178 - - 56 B
Autofac 1,634.89 ns 15.3160 ns 14.3266 ns 121.14 2.01 0.5741 - - 1803 B
FsContainer 1,779.12 ns 18.9507 ns 17.7265 ns 131.83 2.27 0.2441 - - 774 B
StructureMap 1,830.01 ns 5.4174 ns 4.8024 ns 135.60 1.97 0.6294 - - 1978 B
Ninject 12,558.59 ns 268.1920 ns 490.4042 ns 930.58 38.29 1.7858 0.4423 0.0005 5662 B

1.2.2


, BenchmarkDotNet , ( Debug). , , nuget package , , nuget pack:


nuget pack MyProject.csproj -properties Configuration=Release

, package Debug, 25%.


Method Mean Error StdDev Scaled ScaledSD Gen 0 Gen 1 Gen 2 Allocated
Direct 13.38 ns 0.2216 ns 0.2073 ns 1.00 0.00 0.0178 - - 56 B
LightInject 36.85 ns 0.0577 ns 0.0511 ns 2.75 0.04 0.0178 - - 56 B
SimpleInjector 46.56 ns 0.5329 ns 0.4724 ns 3.48 0.06 0.0178 - - 56 B
AspNetCore 70.17 ns 0.1403 ns 0.1312 ns 5.25 0.08 0.0178 - - 56 B
FsContainer 1,271.81 ns 4.0828 ns 3.8190 ns 95.09 1.44 0.2460 - - 774 B
Autofac 1,648.52 ns 2.3197 ns 2.0563 ns 123.26 1.84 0.5741 - - 1803 B
StructureMap 1,829.05 ns 17.8238 ns 16.6724 ns 136.75 2.37 0.6294 - - 1978 B
Ninject 12,520.08 ns 248.2530 ns 534.3907 ns 936.10 41.98 1.7860 0.4423 0.0008 5662 B

1.2.3


, Expression:


private readonly IDictionary> _activatorCache =
    new ConcurrentDictionary>();

ConstructorInfo ParameterInfo[], lambda:


private Func GetActivator(ConstructorInfo ctor, ParameterInfo[] parameters) {
    var p = Expression.Parameter(typeof(object[]), "args");
    var args = new Expression[parameters.Length];

    for (var i = 0; i < parameters.Length; i++)
    {
        var a = Expression.ArrayAccess(p, Expression.Constant(i));
        args[i] = Expression.Convert(a, parameters[i].ParameterType);
    }

    var b = Expression.New(ctor, args);
    var l = Expression.Lambda>(b, p);

    return l.Compile();
}

, Resolve, Activator, 10% , 5- :


Method Mean Error StdDev Scaled ScaledSD Gen 0 Gen 1 Gen 2 Allocated
Direct 13.24 ns 0.0836 ns 0.0698 ns 1.00 0.00 0.0178 - - 56 B
LightInject 37.39 ns 0.0570 ns 0.0533 ns 2.82 0.01 0.0178 - - 56 B
SimpleInjector 46.22 ns 0.2327 ns 0.2063 ns 3.49 0.02 0.0178 - - 56 B
AspNetCore 70.53 ns 0.2885 ns 0.2698 ns 5.33 0.03 0.0178 - - 56 B
FsContainer 1,038.13 ns 17.1037 ns 15.9988 ns 78.41 1.23 0.2327 - - 734 B
Autofac 1,551.33 ns 3.6293 ns 3.2173 ns 117.17 0.64 0.5741 - - 1803 B
StructureMap 1,944.35 ns 1.8665 ns 1.7459 ns 146.85 0.76 0.6294 - - 1978 B
Ninject 13,139.70 ns 260.8754 ns 508.8174 ns 992.43 38.35 1.7857 0.4425 0.0004 5682 B

P.S.


. Github, . IL Direct- 4, .


Method Mean Error StdDev Gen 0 Allocated
Direct 4.031 ns 0.1588 ns 0.1890 ns 0.0076 24 B
CompiledInvoke 85.541 ns 0.5319 ns 0.4715 ns 0.0178 56 B
ConstructorInfoInvoke 316.088 ns 1.8337 ns 1.6256 ns 0.0277 88 B
ActivatorCreateInstance 727.547 ns 2.9228 ns 2.5910 ns 0.1316 416 B
DynamicInvoke 974.699 ns 5.5867 ns 5.2258 ns 0.0515 168 B
Original source: habrahabr.ru (comments, light).

https://habrahabr.ru/post/331584/

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