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Benchmarks for (de)serializing JSON using Refit
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README.md

Refit JSON Benchmarks

This repository contains benchmarks for Refit that compare using Newtonsoft.Json with the new System.Text.Json APIs in .NET Core 3.0.

To run the benchmarks yourself:

  1. Install .NET Core 3.0 preview 6.
  2. Clone this repository.
  3. Run benchmark.ps1 or benchmark.sh.

Results

Below are the benchmark results from my own laptop (your mileage may vary).

Reading a collection

BenchmarkDotNet=v0.11.5, OS=Windows 10.0.18362
Intel Core i7-6700HQ CPU 2.60GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.0.100-preview6-012264
  [Host]     : .NET Core 3.0.0-preview6-27804-01 (CoreCLR 4.700.19.30373, CoreFX 4.700.19.30308), 64bit RyuJIT
  DefaultJob : .NET Core 3.0.0-preview6-27804-01 (CoreCLR 4.700.19.30373, CoreFX 4.700.19.30308), 64bit RyuJIT

Method Mean Error StdDev Median Ratio RatioSD Gen 0 Gen 1 Gen 2 Allocated
Read_Collection_NewtonsoftJson 2.366 ms 0.1675 ms 0.4911 ms 2.504 ms 1.00 0.00 - - - 297.95 KB
Read_Collection_SystemTextJson 1.404 ms 0.0280 ms 0.0693 ms 1.385 ms 0.55 0.09 46.8750 23.4375 - 270.18 KB

Reading an object

BenchmarkDotNet=v0.11.5, OS=Windows 10.0.18362
Intel Core i7-6700HQ CPU 2.60GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.0.100-preview6-012264
  [Host]     : .NET Core 3.0.0-preview6-27804-01 (CoreCLR 4.700.19.30373, CoreFX 4.700.19.30308), 64bit RyuJIT
  DefaultJob : .NET Core 3.0.0-preview6-27804-01 (CoreCLR 4.700.19.30373, CoreFX 4.700.19.30308), 64bit RyuJIT

Method Mean Error StdDev Ratio RatioSD Gen 0 Gen 1 Gen 2 Allocated
Read_Object_NewtonsoftJson 219.60 us 20.5281 us 59.881 us 1.00 0.00 - - - 14.15 KB
Read_Object_SystemTextJson 29.42 us 0.6467 us 1.116 us 0.13 0.03 2.0752 - - 6.49 KB

Writing an object

BenchmarkDotNet=v0.11.5, OS=Windows 10.0.18362
Intel Core i7-6700HQ CPU 2.60GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.0.100-preview6-012264
  [Host]     : .NET Core 3.0.0-preview6-27804-01 (CoreCLR 4.700.19.30373, CoreFX 4.700.19.30308), 64bit RyuJIT
  DefaultJob : .NET Core 3.0.0-preview6-27804-01 (CoreCLR 4.700.19.30373, CoreFX 4.700.19.30308), 64bit RyuJIT

Method Mean Error StdDev Ratio RatioSD Gen 0 Gen 1 Gen 2 Allocated
Write_Object_NewtonsoftJson 22.79 us 0.4491 us 0.4201 us 1.00 0.00 2.6245 - - 8.09 KB
Write_Object_SystemTextJson 16.23 us 0.2553 us 0.2263 us 0.71 0.02 1.9531 - - 6.13 KB
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