Type.GetTypeベンチマーク

TypeBench-report-github.md

BenchmarkDotNet=v0.10.14, OS=Windows 10.0.16299.492 (1709/FallCreatorsUpdate/Redstone3)
Intel Core i7-6700 CPU 3.40GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
Frequency=3328122 Hz, Resolution=300.4698 ns, Timer=TSC
.NET Core SDK=2.1.300
  [Host] : .NET Core 2.1.0 (CoreCLR 4.6.26515.07, CoreFX 4.6.26515.06), 64bit RyuJIT
  Core   : .NET Core 2.1.0 (CoreCLR 4.6.26515.07, CoreFX 4.6.26515.06), 64bit RyuJIT

Job=Core  Runtime=Core  

Method	Mean	Error	StdDev	Min	Max	Gen 0	Allocated
GenericsTypeFullNameWithAssemblyDetail	10.045 us	0.0595 us	0.0497 us	9.932 us	10.120 us	0.0763	360 B
GenericsTypeFullNameWithAssembly	8.205 us	0.1504 us	0.1407 us	8.043 us	8.468 us	0.0763	360 B
GenericsTypeFullName	5.661 us	0.0225 us	0.0163 us	5.638 us	5.693 us	0.0839	360 B
TypeFullNameWithAssemblyDetail	2.950 us	0.0550 us	0.0514 us	2.878 us	3.071 us	-	0 B
TypeFullNameWithAssembly	2.486 us	0.0197 us	0.0174 us	2.450 us	2.524 us	-	0 B
TypeFullName	1.810 us	0.0201 us	0.0178 us	1.785 us	1.830 us	-	0 B

TypeBench.cs

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Attributes.Columns;
using BenchmarkDotNet.Attributes.Jobs;
using System;

namespace Bench
{
    [CoreJob]
    [MeanColumn, MinColumn, MaxColumn]
    [MemoryDiagnoser]
    public class TypeBench
    {
        [Benchmark]
        public Type GenericsTypeFullNameWithAssemblyDetail()
        {
            return Type.GetType(@"System.Collections.Generic.Dictionary`2[
[System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],
[System.Collections.Generic.List`1[
[System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]
], System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]],
System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e");
        }

        [Benchmark]
        public Type GenericsTypeFullNameWithAssembly()
        {
            return Type.GetType(@"System.Collections.Generic.Dictionary`2[
[System.String, System.Private.CoreLib],
[System.Collections.Generic.List`1[[System.String, System.Private.CoreLib]], System.Private.CoreLib]],
System.Private.CoreLib");
        }

        [Benchmark]
        public Type GenericsTypeFullName()
        {
            return Type.GetType(@"System.Collections.Generic.Dictionary`2[[System.String],[System.Collections.Generic.List`1[[System.String]]]]");
        }

        [Benchmark]
        public Type TypeFullNameWithAssemblyDetail()
        {
            return Type.GetType("System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e");
        }

        [Benchmark]
        public Type TypeFullNameWithAssembly()
        {
            return Type.GetType("System.String, System.Private.CoreLib");
        }

        [Benchmark]
        public Type TypeFullName()
        {
            return Type.GetType("System.String");
        }
    }
}