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 v0.14.0, Windows 11 (10.0.22631.3880/23H2/2023Update/SunValley3)
AMD Ryzen 7 3700X, 1 CPU, 16 logical and 8 physical cores
.NET SDK 8.0.303
[Host] : .NET 8.0.7 (8.0.724.31311), X64 RyuJIT AVX2 [AttachedDebugger]
.NET 8.0 : .NET 8.0.7 (8.0.724.31311), X64 RyuJIT AVX2
NativeAOT 8.0 : .NET 8.0.7, X64 NativeAOT AVX2
| Method | Job | Runtime | Mean | Error | StdDev | Ratio | RatioSD | Gen0 | Gen1 | Allocated | Alloc Ratio |
|-------------- |-------------- |-------------- |-----------:|---------:|----------:|------:|--------:|-------:|-------:|----------:|------------:|
| MiniXmlReader | .NET 8.0 | .NET 8.0 | 759.6 ns | 8.87 ns | 7.86 ns | 1.00 | 0.01 | 0.0267 | - | 224 B | 1.00 |
| XmlReader | .NET 8.0 | .NET 8.0 | 2,479.4 ns | 49.21 ns | 127.02 ns | 3.26 | 0.17 | 1.4420 | 0.0572 | 12071 B | 53.89 |
| | | | | | | | | | | | |
| MiniXmlReader | NativeAOT 8.0 | NativeAOT 8.0 | 1,174.3 ns | 10.59 ns | 9.39 ns | 1.00 | 0.01 | 0.0267 | - | 224 B | 1.00 |
| XmlReader | NativeAOT 8.0 | NativeAOT 8.0 | 3,461.0 ns | 66.06 ns | 81.12 ns | 2.95 | 0.07 | 1.4420 | 0.0572 | 12071 B | 53.89 |
<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 v0.14.0, Windows 11 (10.0.22631.3880/23H2/2023Update/SunValley3)
AMD Ryzen 7 3700X, 1 CPU, 16 logical and 8 physical cores
.NET SDK 8.0.303
[Host] : .NET 8.0.7 (8.0.724.31311), X64 RyuJIT AVX2 [AttachedDebugger]
.NET 8.0 : .NET 8.0.7 (8.0.724.31311), X64 RyuJIT AVX2
NativeAOT 8.0 : .NET 8.0.7, X64 NativeAOT AVX2
| Method | Job | Runtime | Mean | Error | StdDev | Ratio | RatioSD | Gen0 | Gen1 | Allocated | Alloc Ratio |
|-------------- |-------------- |-------------- |---------:|----------:|----------:|------:|--------:|-------:|-------:|----------:|------------:|
| MiniXmlReader | .NET 8.0 | .NET 8.0 | 1.685 us | 0.0153 us | 0.0136 us | 1.00 | 0.01 | 0.1755 | - | 1.44 KB | 1.00 |
| XmlReader | .NET 8.0 | .NET 8.0 | 3.612 us | 0.0718 us | 0.1515 us | 2.14 | 0.09 | 1.5869 | 0.0725 | 12.97 KB | 9.02 |
| | | | | | | | | | | | |
| MiniXmlReader | NativeAOT 8.0 | NativeAOT 8.0 | 2.369 us | 0.0195 us | 0.0173 us | 1.00 | 0.01 | 0.1755 | - | 1.44 KB | 1.00 |
| XmlReader | NativeAOT 8.0 | NativeAOT 8.0 | 4.663 us | 0.0900 us | 0.0842 us | 1.97 | 0.04 | 1.5793 | 0.0687 | 12.9 KB | 8.97 |
<?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 v0.14.0, Windows 11 (10.0.22631.3880/23H2/2023Update/SunValley3)
AMD Ryzen 7 3700X, 1 CPU, 16 logical and 8 physical cores
.NET SDK 8.0.303
[Host] : .NET 8.0.7 (8.0.724.31311), X64 RyuJIT AVX2 [AttachedDebugger]
.NET 8.0 : .NET 8.0.7 (8.0.724.31311), X64 RyuJIT AVX2
NativeAOT 8.0 : .NET 8.0.7, X64 NativeAOT AVX2
| Method | Job | Runtime | Mean | Error | StdDev | Ratio | RatioSD | Gen0 | Allocated | Alloc Ratio |
|-------------- |-------------- |-------------- |---------:|--------:|--------:|------:|--------:|-------:|----------:|------------:|
| MiniXmlReader | .NET 8.0 | .NET 8.0 | 113.2 us | 1.21 us | 1.13 us | 1.00 | 0.01 | 1.9531 | 16.57 KB | 1.00 |
| XmlReader | .NET 8.0 | .NET 8.0 | 225.9 us | 2.76 us | 2.58 us | 2.00 | 0.03 | 3.6621 | 30 KB | 1.81 |
| | | | | | | | | | | |
| MiniXmlReader | NativeAOT 8.0 | NativeAOT 8.0 | 167.3 us | 1.74 us | 1.62 us | 1.00 | 0.01 | 1.9531 | 16.57 KB | 1.00 |
| XmlReader | NativeAOT 8.0 | NativeAOT 8.0 | 316.8 us | 2.75 us | 2.44 us | 1.89 | 0.02 | 3.4180 | 29.93 KB | 1.81 |