Minimal XmlReader is a simple, lightweight, and fast XML reader for .NET, mainly viable for NativeAOT.
Official XmlReader uses at least up to 6MB of additional self-contained executable binary size! This library tries to reduce this size, while also reducing memory usage and improving performance, in case you don't want to do any extra fancy XML reading or validating.
Beware this is still considered unstable and on larger XML files this may be still less efficient than the official XmlReader.
Currently, only string input is supported. For reading streams, official XmlReader is more viable.
These benchmarks compare how fast each reader is able to read XML will all the data inside.
<?xml version="1.0" encoding="utf-8"?>
<methodCall>
<methodName>TrackMania.PlayerChat</methodName>
<params>
<param><value><i4>0</i4></value></param>
<param><value><string>bigbang1112_dev</string></value></param>
<param><value><string>TrackMania.PlayerFinish 237 bigbang1112 0</string></value></param>
<param><value><boolean>0</boolean></value></param>
</params>
</methodCall>BenchmarkDotNet v0.13.6, Windows 11 (10.0.22621.1992/22H2/2022Update/SunValley2)
AMD Ryzen 7 3700X, 1 CPU, 16 logical and 8 physical cores
.NET SDK 8.0.100-preview.6.23330.14
[Host] : .NET 7.0.9 (7.0.923.32018), X64 RyuJIT AVX2 [AttachedDebugger]
.NET 6.0 : .NET 6.0.20 (6.0.2023.32017), X64 RyuJIT AVX2
.NET 7.0 : .NET 7.0.9 (7.0.923.32018), X64 RyuJIT AVX2
NativeAOT 7.0 : .NET 7.0.8-servicing.23318.7, X64 NativeAOT AVX2
| Method | Runtime | Mean | Error | StdDev | Ratio | RatioSD | Gen0 | Gen1 | Allocated | Alloc Ratio |
|-------------- |-------------- |-----------:|---------:|---------:|------:|--------:|-------:|-------:|----------:|------------:|
| MiniXmlReader | .NET 6.0 | 1,292.3 ns | 10.28 ns | 9.11 ns | 1.00 | 0.00 | 0.0267 | - | 224 B | 1.00 |
| XmlReader | .NET 6.0 | 3,118.2 ns | 37.74 ns | 31.51 ns | 2.41 | 0.03 | 1.4496 | 0.0572 | 12144 B | 54.21 |
| | | | | | | | | | | |
| MiniXmlReader | .NET 7.0 | 1,168.6 ns | 9.61 ns | 8.99 ns | 1.00 | 0.00 | 0.0267 | - | 224 B | 1.00 |
| XmlReader | .NET 7.0 | 2,986.5 ns | 58.65 ns | 76.26 ns | 2.56 | 0.07 | 1.4534 | 0.0610 | 12144 B | 54.21 |
| | | | | | | | | | | |
| MiniXmlReader | NativeAOT 7.0 | 991.7 ns | 8.01 ns | 7.10 ns | 1.00 | 0.00 | 0.0267 | - | 224 B | 1.00 |
| XmlReader | NativeAOT 7.0 | 3,329.7 ns | 65.77 ns | 80.77 ns | 3.37 | 0.08 | 1.4496 | 0.0572 | 12144 B | 54.21 |
<root>
<person
firstname="Tierney"
lastname="Shirberg"
city="Port-au-Prince"
country="Sao Tome and Principe"
firstname2="Anallese"
lastname2="Chick"
email="[email protected]"
/>
<random>58</random>
<random_float>9.873</random_float>
<bool>true</bool>
<date>1990-09-10</date>
<regEx>helloooooooooooooooooooooooooooooo to you</regEx>
<enum>xml</enum>
<elt>Lilith</elt>
<elt>Correy</elt>
<elt>Roslyn</elt>
<elt>Magdalena</elt>
<elt>Ninnetta</elt>
<Anallese>
<age>34</age>
</Anallese>
</root>BenchmarkDotNet v0.13.6, Windows 11 (10.0.22621.1992/22H2/2022Update/SunValley2)
AMD Ryzen 7 3700X, 1 CPU, 16 logical and 8 physical cores
.NET SDK 8.0.100-preview.6.23330.14
[Host] : .NET 7.0.9 (7.0.923.32018), X64 RyuJIT AVX2 [AttachedDebugger]
.NET 6.0 : .NET 6.0.20 (6.0.2023.32017), X64 RyuJIT AVX2
.NET 7.0 : .NET 7.0.9 (7.0.923.32018), X64 RyuJIT AVX2
NativeAOT 7.0 : .NET 7.0.8-servicing.23318.7, X64 NativeAOT AVX2
| Method | Runtime | Mean | Error | StdDev | Ratio | RatioSD | Gen0 | Gen1 | Allocated | Alloc Ratio |
|-------------- |-------------- |---------:|----------:|----------:|------:|--------:|-------:|-------:|----------:|------------:|
| MiniXmlReader | .NET 6.0 | 2.491 us | 0.0198 us | 0.0185 us | 1.00 | 0.00 | 0.1755 | - | 1.44 KB | 1.00 |
| XmlReader | .NET 6.0 | 4.121 us | 0.0658 us | 0.0615 us | 1.65 | 0.03 | 1.5869 | - | 12.97 KB | 9.02 |
| | | | | | | | | | | |
| MiniXmlReader | .NET 7.0 | 2.229 us | 0.0114 us | 0.0101 us | 1.00 | 0.00 | 0.1755 | - | 1.44 KB | 1.00 |
| XmlReader | .NET 7.0 | 3.644 us | 0.0717 us | 0.0826 us | 1.64 | 0.04 | 1.5869 | 0.0725 | 12.97 KB | 9.02 |
| | | | | | | | | | | |
| MiniXmlReader | NativeAOT 7.0 | 2.075 us | 0.0151 us | 0.0126 us | 1.00 | 0.00 | 0.1755 | - | 1.44 KB | 1.00 |
| XmlReader | NativeAOT 7.0 | 4.306 us | 0.0288 us | 0.0240 us | 2.08 | 0.01 | 1.5869 | 0.0687 | 12.97 KB | 9.02 |
<?xml version="1.0" encoding="utf-8"?>
<methodResponse>
<params>
<param><value><array><data>
<value><array><data>
<value><array><data>
<value><array><data>
<value><string>array</string></value>
</data></array></value>
</data></array></value>
</data></array></value>
<value><array><data>
<value><array><data>
<value><array><data>
<value><string>array</string></value>
... (1800+ lines more)BenchmarkDotNet v0.13.6, Windows 11 (10.0.22621.1992/22H2/2022Update/SunValley2)
AMD Ryzen 7 3700X, 1 CPU, 16 logical and 8 physical cores
.NET SDK 8.0.100-preview.6.23330.14
[Host] : .NET 7.0.9 (7.0.923.32018), X64 RyuJIT AVX2 [AttachedDebugger]
.NET 6.0 : .NET 6.0.20 (6.0.2023.32017), X64 RyuJIT AVX2
.NET 7.0 : .NET 7.0.9 (7.0.923.32018), X64 RyuJIT AVX2
NativeAOT 7.0 : .NET 7.0.8-servicing.23318.7, X64 NativeAOT AVX2
| Method | Runtime | Mean | Error | StdDev | Ratio | RatioSD | Gen0 | Allocated | Alloc Ratio |
|-------------- |-------------- |---------:|--------:|--------:|------:|--------:|-------:|----------:|------------:|
| MiniXmlReader | .NET 6.0 | 181.6 us | 2.43 us | 2.15 us | 1.00 | 0.00 | 1.9531 | 16.57 KB | 1.00 |
| XmlReader | .NET 6.0 | 285.2 us | 1.82 us | 1.61 us | 1.57 | 0.02 | 3.4180 | 30 KB | 1.81 |
| | | | | | | | | | |
| MiniXmlReader | .NET 7.0 | 155.6 us | 1.27 us | 1.06 us | 1.00 | 0.00 | 1.9531 | 16.57 KB | 1.00 |
| XmlReader | .NET 7.0 | 261.5 us | 5.23 us | 7.66 us | 1.68 | 0.06 | 3.4180 | 30 KB | 1.81 |
| | | | | | | | | | |
| MiniXmlReader | NativeAOT 7.0 | 135.1 us | 0.68 us | 0.57 us | 1.00 | 0.00 | 1.9531 | 16.57 KB | 1.00 |
| XmlReader | NativeAOT 7.0 | 325.6 us | 2.56 us | 2.40 us | 2.41 | 0.02 | 3.4180 | 30 KB | 1.81 |