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JsonDocumentSerialization.md

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Serializing System.Text.JsonDocument

What's better option:

  • use System.Text.Json.JsonSerializer.Serialize
  • or use JsonDocument.WriteTo
BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19044.1889 (21H2)
Intel Core i7-7820HQ CPU 2.90GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
.NET SDK=6.0.303
  [Host]     : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
  DefaultJob : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
Method Size Mean Error StdDev Ratio RatioSD Gen 0 Gen 1 Allocated
Serializer Small 415.4 ns 6.84 ns 6.40 ns 1.00 0.00 0.0877 - 368 B
WriteTo Small 475.7 ns 5.70 ns 5.33 ns 1.15 0.02 0.2651 - 1,112 B
Serializer Medium 2,322.7 ns 7.30 ns 6.47 ns 1.00 0.00 0.5608 - 2,360 B
WriteTo Medium 2,819.2 ns 56.38 ns 62.66 ns 1.22 0.03 2.2850 - 9,576 B
Serializer Large 17,239.4 ns 253.99 ns 212.09 ns 1.00 0.00 4.0283 - 16,992 B
WriteTo Large 19,618.4 ns 366.34 ns 342.67 ns 1.14 0.03 11.8103 0.0305 49,560 B