Mappers

BenchMarks most used mapper libraries

Hardware configuration

BenchmarkDotNet v0.13.12, Windows 11 (10.0.22631.3447/23H2/2023Update/SunValley3)

11th Gen Intel Core i5-11400H 2.70GHz, 1 CPU, 12 logical and 6 physical cores

.NET SDK 8.0.204

[Host] : .NET 8.0.4 (8.0.424.16909), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI

DefaultJob : .NET 8.0.4 (8.0.424.16909), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI

Simple mapping results

Method	Mean	Error	StdDev	Gen0	Allocated
ImplicitOperatorMapper	41.33 ns	0.477 ns	0.398 ns	0.0446	280 B
Mapster	61.49 ns	1.134 ns	1.114 ns	0.0446	280 B
MapsterLookingForConstructor	64.05 ns	0.649 ns	0.607 ns	0.0446	280 B
Native	89.90 ns	1.824 ns	3.289 ns	0.0560	352 B
AutoMapper	101.46 ns	2.055 ns	5.079 ns	0.0446	280 B

Hints

Outliers

MappersBenchmarks.ImplicitOperatorMapper: Default -> 2 outliers were removed (44.34 ns, 44.38 ns)

MappersBenchmarks.AutoMapper: Default -> 3 outliers were removed (119.95 ns..131.19 ns)

Mapping lists results

Method	amountPeople	amountAccounts	Mean	Error	StdDev	Median	Gen0	Gen1	Gen2	Allocated
Native	1	10	1.218 ms	0.0240 ms	0.0257 ms	1.216 ms	250.0000	246.0938	-	1.51 MB
MapsterLookingForConstructor	1	10	1.231 ms	0.0227 ms	0.0270 ms	1.222 ms	250.0000	246.0938	-	1.5 MB
AutoMapper	1	10	1.258 ms	0.0240 ms	0.0295 ms	1.256 ms	250.0000	246.0938	-	1.51 MB
Mapster	1	10	1.263 ms	0.0250 ms	0.0511 ms	1.236 ms	250.0000	246.0938	-	1.5 MB
ImplicitOperatorMapper	1	10	1.272 ms	0.0249 ms	0.0324 ms	1.276 ms	250.0000	246.0938	-	1.51 MB
AutoMapper	10	100	7.140 ms	0.1415 ms	0.1983 ms	7.123 ms	1375.0000	625.0000	-	8.41 MB
ImplicitOperatorMapper	10	100	7.267 ms	0.1421 ms	0.2083 ms	7.302 ms	1421.8750	640.6250	31.2500	8.4 MB
Mapster	10	100	7.358 ms	0.1190 ms	0.1055 ms	7.408 ms	1421.8750	640.6250	31.2500	8.39 MB
MapsterLookingForConstructor	10	100	7.479 ms	0.1432 ms	0.1862 ms	7.461 ms	1421.8750	640.6250	31.2500	8.39 MB
Native	10	100	7.502 ms	0.1490 ms	0.1656 ms	7.546 ms	1406.2500	625.0000	31.2500	8.4 MB
MapsterLookingForConstructor	100	200	69.329 ms	1.3406 ms	1.4900 ms	69.865 ms	13400.0000	3000.0000	400.0000	78.52 MB
Native	100	200	70.346 ms	1.3498 ms	1.8020 ms	69.919 ms	13500.0000	3250.0000	500.0000	78.55 MB
AutoMapper	100	200	70.455 ms	0.6181 ms	0.5781 ms	70.276 ms	13333.3333	2666.6667	333.3333	78.77 MB
Mapster	100	200	72.118 ms	1.0477 ms	0.9800 ms	72.021 ms	13500.0000	3250.0000	500.0000	78.52 MB
ImplicitOperatorMapper	100	200	72.336 ms	0.5422 ms	0.4233 ms	72.459 ms	13500.0000	3250.0000	500.0000	78.54 MB

Hints

Outliers

MappersListsBenchmarks.Native: Default -> 1 outlier was removed (1.32 ms)

MappersListsBenchmarks.MapsterLookingForConstructor: Default -> 2 outliers were removed (1.31 ms, 1.33 ms)

MappersListsBenchmarks.AutoMapper: Default -> 2 outliers were removed (1.36 ms, 1.36 ms)

MappersListsBenchmarks.Mapster: Default -> 1 outlier was removed (7.82 ms)

MappersListsBenchmarks.MapsterLookingForConstructor: Default -> 1 outlier was removed, 2 outliers were detected (6.96 ms, 8.04 ms)

MappersListsBenchmarks.Native: Default -> 1 outlier was removed, 4 outliers were detected (7.04 ms..7.20 ms, 7.99 ms)

MappersListsBenchmarks.MapsterLookingForConstructor: Default -> 2 outliers were removed (74.87 ms, 78.91 ms)

MappersListsBenchmarks.ImplicitOperatorMapper: Default -> 3 outliers were removed (73.75 ms..80.04 ms)

Legends

amountPeople : Value of the 'amountPeople' parameter

amountAccounts : Value of the 'amountAccounts' parameter

Mean : Arithmetic mean of all measurements

Error : Half of 99.9% confidence interval

StdDev : Standard deviation of all measurements

Median : Value separating the higher half of all measurements (50th percentile)

Gen0 : GC Generation 0 collects per 1000 operations

Gen1 : GC Generation 1 collects per 1000 operations

Gen2 : GC Generation 2 collects per 1000 operations

Allocated : Allocated memory per single operation (managed only, inclusive, 1KB = 1024B)

1 ns : 1 Nanosecond (0.000000001 sec)

1 ms : 1 Millisecond (0.001 sec)