The fastest Json serialization for .NET Core.
A faster fork of Utf8Json that could deserialize from native memory directly. All docs and API are the same.
Optimized to 2.3x faster deserialization and 2.0x faster serialization
on x64 .NET Standard / .NET Core 2.1 than the original Utf8Json
(measured in operations per second). The numbers are using the original
benchmark that does not include double conversion. This fork improved to
some extent double conversion speed as well (+37%/+61% vs base with an
additional double field).
See docs/results
folder for the numbers.
This fork could deserialize from native memory without copying, which effectively makes it even faster for applications that need this functionality (and that was the reason for this fork).
Compared to the "default" Json.NET library, this implementation is 10+x times faster for serialization and 15+x times faster for deserialization. Also writing custom formatters is much simpler (personal taste) and they are super fast as well.
Public API is almost the same as in the original project and resides in Spreads.Serialization.Utf8Json
namespace. (JsonReader used DirectBuffer instead of byte[] - this is the only change in public API).
Branch spreads has almost all changes responsible for serialization speedup and was sent to
upstream as a PR earlier. (EnsureCapacity was not
inlined, this probably gives 90% of the difference).
Modifications in the direct_buffer branch are licensed as MPL 2.0 since they are a part of Spreads.Core.
Based on original Utf8Json by Yoshifumi Kawai licensed as MIT. Many thanks to the author for such beautifully simple and powerful code!
Any work with the source code is supposed to be happening from Spreads repository which contains this repository as a submodule. This library has relative-path imports of files from Spreads.Core so that it could be build as a standalone dll and unit tests could run.
Spreads.Utf8Json is a part of Spreads.Core binary distribution and is a fallback serialization mechanism in Spreads.
The recommended way to use this library is to install Spreads.Core package.
A package Spreads.Utf8Json may be available with ad-hoc maintainance and updates.