SystemTextJson • NewtonsoftJson • Utf8Json • SpanJson
This repository aims to compare the performance of popular JSON serialization libraries in the C# ecosystem. I evaluate each library's serialization and deserialization capabilities, providing insights and recommendations based on my findings.
I conduct performance tests to measure both the serialization and deserialization speeds, as well as memory usage, of each library under various scenarios and data volumes.
- Serialization Performance: Comparison of serialization times and memory consumption across libraries.
- Deserialization Performance: Evaluation of deserialization speeds and memory footprint.
- CPU: Intel Core i5-6300HQ 2.3 Ghz
- RAM: 16GB DDR4 2800 Mhz
- Graphics: Intel HD Graphics 530
- SystemTextJson: Version 8.0.1
- NewtonsoftJson: Version 13.0.3
- Utf8Json: Version 4.0.1
- SpanJson: Version 1.3.7
| Method | Mean | Error | StdDev | Gen0 | Gen1 | Gen2 | Allocated |
|---|---|---|---|---|---|---|---|
| SystemTextJson | 326.2 us | 6.83 us | 20.15 us | 33.2031 | 33.2031 | 33.2031 | 104.33 KB |
| NewtonsoftJsonLibrary | 508.3 us | 7.97 us | 7.45 us | 66.4063 | 33.2031 | 33.2031 | 218.49 KB |
| Utf8JsonLibrary | 111.3 us | 2.18 us | 2.83 us | 16.6016 | - | - | 51.99 KB |
| SpanJsonLibrary | 230.9 us | 6.42 us | 18.92 us | 33.2031 | 33.2031 | 33.2031 | 103.97 KB |
| Method | Mean | Error | StdDev | Gen0 | Gen1 | Allocated |
|---|---|---|---|---|---|---|
| SystemTextJson | 500.9 us | 11.53 us | 33.99 us | 41.0156 | - | 127.99 KB |
| NewtonsoftJsonLibrary | 657.6 us | 13.06 us | 24.85 us | 41.9922 | - | 130.84 KB |
| Utf8JsonLibrary | 385.8 us | 7.65 us | 17.27 us | 61.5234 | 19.0430 | 202.17 KB |
| SpanJsonLibrary | 256.6 us | 3.36 us | 2.98 us | 41.5039 | - | 127.56 KB |
Based on my performance analysis, I provide insights into the strengths and weaknesses of each library and offer recommendations for different use cases.
- Integrated into the .NET standard library, offering seamless usage.
- Relatively average serialization and deserialization speed.
- Ease of use, especially within the .NET ecosystem.
- Lack of flexibility compared to other libraries in this comparison.
- Not as performant in terms of speed compared to other options available.
- Suitable for projects where ease of use and standardization within the .NET ecosystem are prioritized over maximum performance.
- If speed is a critical factor and flexibility is needed, consider alternatives from the list.
- Highly flexible and customizable, offering a wide range of tools and features.
- Ability to create custom contracts for serialization, enhancing control over the serialization process.
- Rich ecosystem and extensive documentation make it a valuable resource for developers.
- Relatively slower performance compared to other libraries in this comparison.
- Higher memory consumption may be a concern, particularly in memory-constrained environments.
- Recommended for projects where flexibility and customization are paramount, and performance considerations are secondary.
- Not ideal for memory-sensitive or performance-critical applications where speed and memory efficiency are top priorities.
- Despite performance considerations, it remains an excellent library worth exploring due to its extensive feature set and community support.
- Exceptionally fast serialization and deserialization speeds, making it one of the fastest libraries in this comparison.
- Efficiently handles UTF-8 encoding, which can be advantageous in UTF-8-centric applications.
- Well-suited for scenarios where speed is critical and UTF-8 encoding is the preferred format.
- Limited flexibility compared to more feature-rich libraries.
- Serialization exclusively in UTF-8 format may not be optimal for all use cases, especially in multi-encoding environments.
- more allocation. If you critical memory dont used this library
- Ideal for high-performance applications where speed is of utmost importance and UTF-8 encoding is sufficient.
- Not recommended for projects requiring extensive customization or support for multiple encoding formats.
- Consider Utf8Json for scenarios where speed and UTF-8 compatibility are key requirements, but explore other options for broader feature sets and encoding support.
- The fastest library in the comparison, offering exceptional serialization and deserialization speeds.
- Minimal memory consumption, making it highly efficient in resource usage.
- Utilizes Span underneath, contributing to its remarkable speed and efficiency.
- Provides flexibility by supporting both UTF-8 and UTF-16 serialization formats.
- Limited in terms of flexibility and feature richness compared to other libraries.
- Not suitable for universal adoption due to its specialized focus on speed and efficiency.
- Recommended for scenarios where speed and minimal memory footprint are critical, such as high-throughput systems or resource-constrained environments.
- Not suitable for projects requiring extensive customization or broad feature support.
- Consider SpanJson for specialized use cases where speed is paramount, but explore other options for more comprehensive functionality and flexibility.
If you have any questions or suggestions, feel free to reach out to me.
This project is licensed under the MIT License.