Benchmarks

Benchmarks have been implemented with BenchmarkDotNet.

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	0.0000 ns	0.0000 ns	0.0000 ns	?	?
GetFieldInfo_Field	100.6782 ns	0.1422 ns	0.1261 ns	?	?
GetFieldInfoCache_Field	60.4257 ns	0.7904 ns	0.7393 ns	?	?
GetFastMember_Field	29.9598 ns	0.4392 ns	0.3894 ns	?	?
GetImmediateField_Field	5.2535 ns	0.1314 ns	0.3018 ns	?	?

GetDirect_Field is a too quick action to be benchmark, considering it as immediate!

Set a field value

Method	Mean	Error	StdDev	Ratio	RatioSD
SetDirect_Field	0.0051 ns	0.0085 ns	0.0075 ns	?	?
SetFieldInfo_Field	129.9163 ns	0.3037 ns	0.2371 ns	?	?
SetFieldInfoCache_Field	81.8266 ns	0.2578 ns	0.2153 ns	?	?
SetFastMember_Field	28.8047 ns	0.0672 ns	0.0524 ns	?	?
SetImmediateField_Field	5.2266 ns	0.1288 ns	0.1205 ns	?	?

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Get a property value

Method	Mean	Error	StdDev	Ratio	RatioSD
GetDirect_Property	0.3030 ns	0.0389 ns	0.0363 ns	1.00	0.00
GetDelegate_Property	4.9874 ns	0.0986 ns	0.1247 ns	16.76	1.97
GetDynamicDelegate_Property	537.3377 ns	8.8565 ns	8.2843 ns	1,796.26	207.81
GetPropertyInfo_Property	142.9487 ns	0.7985 ns	0.7469 ns	477.96	55.61
GetPropertyInfoCache_Property	87.2921 ns	0.9230 ns	0.8182 ns	288.61	32.69
GetSigilEmit_Property	5.9783 ns	0.1159 ns	0.1190 ns	19.97	2.35
GetExpression_Property	9.7760 ns	0.1546 ns	0.1446 ns	32.71	4.03
GetFastMember_Property	29.1414 ns	0.3692 ns	0.3453 ns	97.45	11.57
GetImmediateProperty_Property	5.1417 ns	0.1690 ns	0.4271 ns	17.20	2.52

GetDirect_Property is a too quick action to be benchmark, considering it as immediate!

Set a property value

Method	Mean	Error	StdDev	Ratio	RatioSD
SetDirect_Property	1.165 ns	0.0101 ns	0.0094 ns	1.00	0.00
SetDelegate_Property	4.596 ns	0.0915 ns	0.1785 ns	3.92	0.13
SetDynamicDelegate_Property	571.378 ns	6.8747 ns	6.4306 ns	490.65	6.76
SetPropertyInfo_Property	198.768 ns	1.2488 ns	1.1681 ns	170.69	2.07
SetPropertyInfoCache_Property	141.481 ns	0.8785 ns	0.7788 ns	121.51	1.46
SetSigilEmit_Property	4.644 ns	0.0911 ns	0.1152 ns	4.00	0.11
SetExpression_Property	7.622 ns	0.0195 ns	0.0183 ns	6.55	0.06
SetFastMember_Property	31.451 ns	0.1225 ns	0.1086 ns	27.01	0.22
SetImmediateProperty_Property	4.526 ns	0.0966 ns	0.0857 ns	3.89	0.08

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