LambdaCaptureContext

Show different uses of delegates and their performance.

Results om my box:

BenchmarkDotNet v0.15.3, Windows 11 (10.0.26200.7623) Intel Core Ultra 9 185H 3.10GHz, 1 CPU, 22 logical and 16 physical cores .NET SDK 10.0.102 [Host] : .NET 10.0.2 (10.0.2, 10.0.225.61305), X64 RyuJIT x86-64-v3 ShortRun : .NET 10.0.2 (10.0.2, 10.0.225.61305), X64 RyuJIT x86-64-v3

Job=ShortRun Runtime=.NET 10.0 Toolchain=net10.0
IterationCount=3 LaunchCount=1 WarmupCount=3

DemoDelegateNoParams

Method	Mean	Error	StdDev	Allocated
Normal_Call	0.0000 ns	0.0000 ns	0.0000 ns	-
Lambda_Only	0.0510 ns	0.0447 ns	0.0025 ns	-
Lambda_Static_Only	0.0730 ns	0.0311 ns	0.0017 ns	-
Method_Group	1.7265 ns	0.1411 ns	0.0077 ns	-
Lambda_Cached	0.0788 ns	0.0218 ns	0.0012 ns	-
Lambda_Static_Cached	0.0790 ns	0.0410 ns	0.0022 ns	-
Method_Group_Cached	1.6916 ns	0.1543 ns	0.0085 ns	-

DemoDelegateParams

Method	Mean	Error	StdDev	Median	Ratio	Gen0	Allocated	Alloc Ratio
Normal_Call	0.0133 ns	0.0734 ns	0.0040 ns	0.0122 ns	0.004	-	-	0.00
Lambda_With_IntParam	0.0676 ns	0.1076 ns	0.0059 ns	0.0655 ns	0.018	-	-	0.00
Lambda_Static_With_IntParam	0.0600 ns	0.0598 ns	0.0033 ns	0.0599 ns	0.016	-	-	0.00
Lambda_With_CastedObjectParam	3.8324 ns	1.1318 ns	0.0620 ns	3.8045 ns	1.031	0.0005	24 B	1.00
Lambda_With_CastedObjectParam_Static	3.7851 ns	0.4217 ns	0.0231 ns	3.7906 ns	1.019	0.0005	24 B	1.00
Lambda_Captured_Local_Var	3.7159 ns	0.2819 ns	0.0155 ns	3.7235 ns	1.000	0.0005	24 B	1.00
Method_Group_Captured_Local_Function_Var	3.5145 ns	0.9570 ns	0.0525 ns	3.5029 ns	0.946	0.0005	24 B	1.00
Lambda_Captured_Class_Var	0.0050 ns	0.0591 ns	0.0032 ns	0.0058 ns	0.001	-	-	0.00
Method_Group_Captured_Class_Var	0.0070 ns	0.1259 ns	0.0069 ns	0.0037 ns	0.002	-	-	0.00
Lambda_Captured_Local_Var_Cached	0.6504 ns	0.0489 ns	0.0027 ns	0.6516 ns	0.175	-	-	0.00
Lambda_Static_Captured_Local_Var_Cached	0.6509 ns	0.0688 ns	0.0038 ns	0.6528 ns	0.175	-	-	0.00
Method_Group_Captured_Local_Var_Cached	1.4898 ns	0.0366 ns	0.0020 ns	1.4897 ns	0.401	-	-	0.00

MethodGroupVsLambda

Method	Mean	Error	StdDev	Gen0	Allocated
Lambda_Capture	131.864 ns	86.9297 ns	4.7649 ns	0.0126	664 B
MethodGroup_Capture	122.385 ns	56.0916 ns	3.0746 ns	0.0126	664 B
Lambda	4.824 ns	0.3056 ns	0.0168 ns	-	-
Lambda_Static	4.821 ns	0.7053 ns	0.0387 ns	-	-
MethodGroup	95.777 ns	55.5455 ns	3.0446 ns	0.0122	640 B
MethodGroup_Static	17.719 ns	0.5480 ns	0.0300 ns	-	-