Benchmarks

Benchmarks have been implemented with BenchmarkDotNet.

These benchmarks have been done by making multiple get or set on multiple types to avoid caching of the same operation.

Configuration

BenchmarkDotNet=v0.11.5
OS=Windows 10.0.18362
Processor=Intel Core i7-7700K CPU 4.20GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
  [Host]     : .NET Framework 4.7.2 (CLR 4.0.30319.42000), 64bit RyuJIT-v4.8.3815.0
  DefaultJob : .NET Framework 4.7.2 (CLR 4.0.30319.42000), 64bit RyuJIT-v4.8.3815.0

Implementation details

The Field or Property cache implementations consider as a cache the fact of having the right PropertyInfo ready to use with GetValue/SetValue.

Results

Get a field value

Method Mean Error StdDev Ratio RatioSD
GetDirect_Field 530.0 ns 11.161 ns 24.499 ns 1.00 0.00
GetFieldInfo_Field 966.9 ns 11.199 ns 10.475 ns 1.74 0.08
GetFieldInfoCache_Field 788.5 ns 6.924 ns 5.782 ns 1.40 0.05
GetFastMember_Field 691.2 ns 6.194 ns 5.794 ns 1.24 0.05
GetImmediateField_Field 538.6 ns 14.479 ns 12.835 ns 0.96 0.05

Set a field value

Method Mean Error StdDev Ratio RatioSD
SetDirect_Field 1.343 ns 0.0212 ns 0.0188 ns 1.00 0.00
SetFieldInfo_Field 508.308 ns 4.1885 ns 3.9179 ns 378.54 7.06
SetFieldInfoCache_Field 334.152 ns 3.7199 ns 3.4796 ns 248.86 4.38
SetFastMember_Field 153.589 ns 1.2526 ns 1.0459 ns 114.37 1.59
SetImmediateField_Field 23.006 ns 1.0165 ns 1.2101 ns 17.31 1.12

Get a property value

Method Mean Error StdDev Ratio RatioSD
GetDirect_Property 700.8 ns 2.185 ns 1.824 ns 1.00 0.00
GetDelegate_Property 723.6 ns 3.828 ns 3.394 ns 1.03 0.01
GetDynamicDelegate_Property 3,323.6 ns 17.185 ns 15.234 ns 4.74 0.03
GetPropertyInfo_Property 1,482.8 ns 32.301 ns 34.561 ns 2.12 0.05
GetPropertyInfoCache_Property 1,210.4 ns 9.714 ns 9.087 ns 1.73 0.01
GetSigilEmit_Property 728.7 ns 7.606 ns 6.742 ns 1.04 0.01
GetExpression_Property 748.6 ns 2.830 ns 2.509 ns 1.07 0.01
GetFastMember_Property 936.6 ns 18.140 ns 20.163 ns 1.34 0.03
GetImmediateProperty_Property 727.7 ns 9.243 ns 7.719 ns 1.04 0.01

Note that ImmediateReflection performs really well if we take into account that the only better benchmark concern implementation using strong types considered as known which is in fact not the case in the mindset of ImmediateReflection. Indeed ImmediateReflection must work with object in a first approach and not the real property type (see PropertyInfo.GetValue as reference).

Set a property value

Method Mean Error StdDev Ratio RatioSD
SetDirect_Property 1.402 ns 0.0287 ns 0.0254 ns 1.00 0.00
SetDelegate_Property 10.876 ns 0.2157 ns 0.4051 ns 7.73 0.36
SetDynamicDelegate_Property 2,536.329 ns 37.2463 ns 34.8403 ns 1,809.40 45.17
SetPropertyInfo_Property 858.440 ns 13.0924 ns 12.2467 ns 613.07 13.73
SetPropertyInfoCache_Property 638.475 ns 7.7110 ns 6.8356 ns 455.62 8.86
SetSigilEmit_Property 10.987 ns 0.2192 ns 0.5926 ns 7.65 0.31
SetExpression_Property 32.915 ns 0.1765 ns 0.1564 ns 23.49 0.45
SetFastMember_Property 164.237 ns 1.0621 ns 0.9416 ns 117.20 1.72
SetImmediateProperty_Property 22.787 ns 0.5222 ns 0.8282 ns 16.70 0.70

Note that ImmediateReflection performs really well if we take into account that the only better benchmark concern implementation using strong types considered as known which is in fact not the case in the mindset of ImmediateReflection. Indeed ImmediateReflection must work with object in a first approach and not the real property type (see PropertyInfo.SetValue as reference).

As expected ImmediateReflection library provides get/set access in a very fast way, while also keeping the standard interface of .NET Reflection.