A fast DI container you can understand
I created this DI container originally for use in Microsoft patterns & practices framework for developing mobile apps targeting the .NET Compact Framework, which had to run on very constrained devices (back then). No usage of System.Reflection was pretty much a given requirement.
Along the way, I created a series of videos where I showcasehow to use TDD to implement the whole thing from scratch.
BenchmarkDotNet v0.13.12, Windows 11 (10.0.22631.3593/23H2/2023Update/SunValley3)
Intel Core i9-10900T CPU 1.90GHz, 1 CPU, 20 logical and 10 physical cores
[Host] : .NET Framework 4.8.1 (4.8.9241.0), X64 RyuJIT VectorSize=256
.NET 6.0 : .NET 6.0.27 (6.0.2724.6912), X64 RyuJIT AVX2
.NET 8.0 : .NET 8.0.4 (8.0.424.16909), X64 RyuJIT AVX2
| Method | Runtime | Mean | Error | StdDev | Median | Ratio | RatioSD |
|---|---|---|---|---|---|---|---|
| 'No DI' | .NET 6.0 | 85.90 ns | 1.755 ns | 4.204 ns | 85.48 ns | 1.00 | 0.00 |
| Funq | .NET 6.0 | 1,279.53 ns | 22.287 ns | 20.848 ns | 1,275.61 ns | 14.51 | 0.71 |
| ServiceCollection | .NET 6.0 | 19,293.83 ns | 639.905 ns | 1,876.731 ns | 19,363.75 ns | 228.75 | 22.79 |
| Unity | .NET 6.0 | 11,052.90 ns | 219.512 ns | 205.332 ns | 11,036.42 ns | 125.38 | 7.45 |
| Autofac | .NET 6.0 | 52,322.62 ns | 1,044.219 ns | 2,714.063 ns | 51,397.70 ns | 611.19 | 40.38 |
| StructureMap | .NET 6.0 | 4,106,653.85 ns | 109,422.178 ns | 313,952.741 ns | 4,050,650.00 ns | 47,554.83 | 3,709.43 |
| Ninject | .NET 6.0 | 621,417.49 ns | 19,670.749 ns | 57,690.901 ns | 606,653.52 ns | 7,144.12 | 582.38 |
| Windsor | .NET 6.0 | 165,673.09 ns | 2,802.828 ns | 2,484.634 ns | 165,504.05 ns | 1,873.34 | 103.36 |
| 'No DI' | .NET 8.0 | 63.21 ns | 1.249 ns | 1.624 ns | 63.16 ns | 1.00 | 0.00 |
| Funq | .NET 8.0 | 843.21 ns | 16.439 ns | 16.145 ns | 839.61 ns | 13.29 | 0.46 |
| ServiceCollection | .NET 8.0 | 7,972.33 ns | 163.442 ns | 474.174 ns | 7,877.49 ns | 121.48 | 6.46 |
| Unity | .NET 8.0 | 8,793.95 ns | 173.747 ns | 206.833 ns | 8,814.48 ns | 139.12 | 5.15 |
| Autofac | .NET 8.0 | 40,158.30 ns | 793.924 ns | 1,004.059 ns | 40,017.48 ns | 635.76 | 23.40 |
| StructureMap | .NET 8.0 | 3,007,362.81 ns | 51,683.220 ns | 48,344.516 ns | 3,022,072.27 ns | 47,453.44 | 1,330.72 |
| Ninject | .NET 8.0 | 570,046.30 ns | 15,811.656 ns | 45,111.545 ns | 565,521.73 ns | 8,383.15 | 638.32 |
| Windsor | .NET 8.0 | 140,258.83 ns | 2,799.971 ns | 7,988.474 ns | 137,446.48 ns | 2,183.18 | 114.48 |
| Method | Runtime | Gen0 | Gen1 | Allocated | Alloc Ratio |
|---|---|---|---|---|---|
| 'No DI' | .NET 6.0 | 0.0397 | - | 416 B | 1.00 |
| Funq | .NET 6.0 | 0.2155 | - | 2256 B | 5.42 |
| ServiceCollection | .NET 6.0 | 1.3733 | 0.6714 | 14432 B | 34.69 |
| Unity | .NET 6.0 | 1.7853 | 0.0610 | 18696 B | 44.94 |
| Autofac | .NET 6.0 | 3.2959 | 1.6479 | 34859 B | 83.80 |
| StructureMap | .NET 6.0 | 23.4375 | 7.8125 | 294826 B | 708.72 |
| Ninject | .NET 6.0 | 7.8125 | 2.9297 | 88347 B | 212.37 |
| Windsor | .NET 6.0 | 11.9629 | 0.7324 | 125665 B | 302.08 |
| 'No DI' | .NET 8.0 | 0.0397 | - | 416 B | 1.00 |
| Funq | .NET 8.0 | 0.2155 | 0.0010 | 2256 B | 5.42 |
| ServiceCollection | .NET 8.0 | 1.1597 | 1.0986 | 12335 B | 29.65 |
| Unity | .NET 8.0 | 1.7853 | 0.0610 | 18696 B | 44.94 |
| Autofac | .NET 8.0 | 2.9297 | 2.6855 | 32745 B | 78.71 |
| StructureMap | .NET 8.0 | 23.4375 | 19.5313 | 281557 B | 676.82 |
| Ninject | .NET 8.0 | 8.7891 | 3.9063 | 93223 B | 224.09 |
| Windsor | .NET 8.0 | 11.7188 | 0.9766 | 125664 B | 302.08 |