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DryIoc is fast, small, full-featured IoC Container for .NET

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Benchmarks

Performance overview

Realistic scenario with the unit-of-work scope and object graph of 40 dependencies 4 levels deep

More details in #44 and #26.

The listed .MsDI packages are respective Microsoft.Extensions.DependencyInjection adapters

Cold start - Registering services then opening the scope and resolving the root scoped service (e.g. controller) for the first time

DryIoc 5.0.0 (.MsDI 6.0.0), MsDI 6.0.0, Grace 7.2.1 (.MsDI 7.1.0), Autofac 6.3.0 (.MsDI 7.2.0), Lamar 8.0.1

BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19043
Intel Core i9-8950HK CPU 2.90GHz (Coffee Lake), 1 CPU, 12 logical and 6 physical cores
.NET Core SDK=6.0.201
  [Host]     : .NET Core 6.0.3 (CoreCLR 6.0.322.12309, CoreFX 6.0.322.12309), X64 RyuJIT
  DefaultJob : .NET Core 6.0.3 (CoreCLR 6.0.322.12309, CoreFX 6.0.322.12309), X64 RyuJIT

| Method       |         Mean |      Error |     StdDev |  Ratio | RatioSD |    Gen 0 |   Gen 1 |  Gen 2 | Allocated |
| ------------ | -----------: | ---------: | ---------: | -----: | ------: | -------: | ------: | -----: | --------: |
| DryIoc       |     82.22 us |   1.209 us |   1.072 us |   1.00 |    0.00 |   6.3477 |  0.3662 |      - |  39.42 KB |
| DryIoc_MsDI  |     94.18 us |   1.207 us |   1.070 us |   1.15 |    0.02 |   8.0566 |  0.6104 |      - |  49.87 KB |
| MsDI         |     94.60 us |   0.715 us |   0.597 us |   1.15 |    0.01 |  11.8408 |  4.2725 |      - |  72.59 KB |
| Autofac      |    543.45 us |   4.570 us |   3.568 us |   6.60 |    0.10 |  51.7578 | 25.3906 | 1.9531 | 317.19 KB |
| Autofac_MsDI |    534.64 us |   5.919 us |   5.247 us |   6.50 |    0.10 |  54.6875 | 27.3438 | 1.9531 | 340.17 KB |
| Lamar_MsDI   |  7,053.46 us | 140.273 us | 402.469 us |  77.97 |    2.84 |        - |       - |      - | 649.68 KB |
| Grace        | 15,990.58 us | 123.798 us | 109.744 us | 194.52 |    2.21 |  93.7500 | 31.2500 |      - | 736.12 KB |
| Grace_MsDI   | 18,884.30 us | 321.388 us | 268.373 us | 229.50 |    4.25 | 125.0000 | 62.5000 |      - |  904.7 KB |
<details> <summary>Older versions for the comparison</summary>

DryIoc 4.5.0 (.MsDI 5.0.0), MsDI 3.1.8, Grace 7.1.1 (.MsDI 7.0.1), Autofac 6.0.0 (.MsDI 7.0.2), Lamar 4.3.1

BenchmarkDotNet=v0.12.0, OS=Windows 10.0.19041
Intel Core i7-8565U CPU 1.80GHz (Whiskey Lake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.1.402
  [Host]     : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT
  DefaultJob : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT


| Method       |        Mean |     Error |    StdDev |  Ratio | RatioSD |    Gen 0 |   Gen 1 |  Gen 2 | Allocated |
| ------------ | ----------: | --------: | --------: | -----: | ------: | -------: | ------: | -----: | --------: |
| DryIoc       |    129.6 us |   1.90 us |   1.68 us |   0.86 |    0.02 |  16.3574 |  0.2441 |      - |  67.52 KB |
| DryIoc_MsDI  |    161.9 us |   1.74 us |   1.63 us |   1.07 |    0.03 |  21.4844 |  0.2441 |      - |   88.6 KB |
| MsDI         |    150.8 us |   2.83 us |   3.03 us |   1.00 |    0.00 |  18.0664 |  0.2441 |      - |  73.86 KB |
| Autofac      |    789.4 us |  19.84 us |  20.38 us |   5.24 |    0.18 |  50.7813 | 25.3906 | 1.9531 | 311.12 KB |
| Autofac_MsDI |    784.9 us |  15.04 us |  18.47 us |   5.20 |    0.15 |  54.6875 | 27.3438 | 1.9531 | 335.07 KB |
| Lamar_MsDI   | 10,938.2 us | 308.25 us | 874.46 us |  70.86 |    4.29 |        - |       - |      - | 696.16 KB |
| Grace        | 21,380.9 us | 375.46 us | 351.21 us | 141.65 |    2.83 | 156.2500 | 62.5000 |      - | 729.12 KB |
| Grace_MsDI   | 24,102.4 us | 243.21 us | 203.09 us | 159.26 |    3.52 | 187.5000 | 93.7500 |      - | 894.57 KB |
</details>

Hot run - Opening the scope and resolving the root scoped service for the Nth time

DryIoc 5.0.0 (.MsDI 6.0.0), MsDI 6.0.0, Grace 7.2.1 (.MsDI 7.1.0), Autofac 6.3.0 (.MsDI 7.2.0), Lamar 8.0.1

BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19043
Intel Core i9-8950HK CPU 2.90GHz (Coffee Lake), 1 CPU, 12 logical and 6 physical cores
.NET Core SDK=6.0.201
  [Host]     : .NET Core 6.0.3 (CoreCLR 6.0.322.12309, CoreFX 6.0.322.12309), X64 RyuJIT
  DefaultJob : .NET Core 6.0.3 (CoreCLR 6.0.322.12309, CoreFX 6.0.322.12309), X64 RyuJIT

| Method       |      Mean |     Error |    StdDev | Ratio | RatioSD |   Gen 0 |  Gen 1 | Gen 2 | Allocated |
| ------------ | --------: | --------: | --------: | ----: | ------: | ------: | -----: | ----: | --------: |
| DryIoc       |  1.535 us | 0.0143 us | 0.0111 us |  1.00 |    0.00 |  0.4749 | 0.0076 |     - |   2.91 KB |
| DryIoc_MsDI  |  2.405 us | 0.0277 us | 0.0246 us |  1.57 |    0.02 |  0.4807 | 0.0076 |     - |   2.96 KB |
| MsDI         |  3.655 us | 0.0726 us | 0.0807 us |  2.40 |    0.05 |  0.7629 | 0.0114 |     - |   4.68 KB |
| Grace        |  1.807 us | 0.0241 us | 0.0213 us |  1.18 |    0.02 |  0.5169 | 0.0076 |     - |   3.17 KB |
| Grace_MsDI   |  2.576 us | 0.0421 us | 0.0394 us |  1.68 |    0.03 |  0.5569 | 0.0076 |     - |   3.41 KB |
| Lamar_MsDI   |  6.673 us | 0.0876 us | 0.0732 us |  4.35 |    0.06 |  0.9995 | 0.4959 |     - |   6.16 KB |
| Autofac      | 47.040 us | 0.7367 us | 0.6531 us | 30.65 |    0.48 |  7.7515 | 0.6104 |     - |  47.73 KB |
| Autofac_MsDI | 59.566 us | 0.8734 us | 0.7742 us | 38.76 |    0.61 | 11.3525 | 0.9155 |     - |  69.59 KB |
<details> <summary>Older versions for the comparison</summary>

DryIoc 5.0.0 (.MsDI 5.0.0), MsDI 5.0.1, Grace 7.2.0 (.MsDI 7.1.0), Autofac 6.1.0 (.MsDI 7.1.0), Lamar 5.0.3

BenchmarkDotNet=v0.12.0, OS=Windows 10.0.18363
Intel Core i9-8950HK CPU 2.90GHz (Coffee Lake), 1 CPU, 12 logical and 6 physical cores
.NET Core SDK=5.0.200
  [Host]     : .NET Core 3.1.12 (CoreCLR 4.700.21.6504, CoreFX 4.700.21.6905), X64 RyuJIT
  DefaultJob : .NET Core 3.1.12 (CoreCLR 4.700.21.6504, CoreFX 4.700.21.6905), X64 RyuJIT

| Method              |      Mean |     Error |    StdDev |    Median | Ratio | RatioSD |   Gen 0 |  Gen 1 | Gen 2 | Allocated |
| ------------------- | --------: | --------: | --------: | --------: | ----: | ------: | ------: | -----: | ----: | --------: |
| MsDI                |  3.675 us | 0.0730 us | 0.1070 us |  3.699 us |  1.00 |    0.00 |  0.7095 | 0.0114 |     - |   4.35 KB |
| DryIoc              |  1.359 us | 0.0147 us | 0.0138 us |  1.354 us |  0.37 |    0.01 |  0.4768 | 0.0057 |     - |   2.93 KB |
| DryIoc_MsDIAdapter  |  2.051 us | 0.0408 us | 0.0437 us |  2.048 us |  0.56 |    0.02 |  0.4807 | 0.0038 |     - |   2.95 KB |
| Grace               |  1.751 us | 0.0339 us | 0.0377 us |  1.748 us |  0.47 |    0.02 |  0.5150 | 0.0076 |     - |   3.17 KB |
| Grace_MsDIAdapter   |  2.395 us | 0.0578 us | 0.0594 us |  2.402 us |  0.65 |    0.03 |  0.5569 |      - |     - |   3.41 KB |
| Lamar_MsDIAdapter   |  6.802 us | 0.0675 us | 0.0563 us |  6.800 us |  1.85 |    0.06 |  1.5335 | 0.7629 |     - |   9.44 KB |
| Autofac             | 50.699 us | 0.9995 us | 2.3947 us | 49.903 us | 14.13 |    0.81 |  7.7515 | 0.6104 |     - |  47.84 KB |
| Autofac_MsDIAdapter | 60.233 us | 1.1734 us | 1.2050 us | 60.089 us | 16.38 |    0.46 | 10.7422 | 0.8545 |     - |  66.26 KB |
</details>

Reliability

Features

Incomplete feature list

Resolution options

DryIoc implements a service resolution and injection via expression compilation and interpretation. The interpretation is the only option for the target platforms without the System.Reflection.Emit like the Xamarin iOS. Check the Resolution Pipeline document for more details.


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