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Interesting. I will be curious to see how it stacks up against Jackson Smile, both in terms of features and performance. Since it appears to support both polymorphism and back-references, it looks like it already has some advanced features.

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Yeah, you are right. Fury supports polymorphism and circular/shared references, which are not supported by json/jackson. I did a benchmark with jackson before, here are the results: 1) Fury is 41.6x faster than jackson for Struct serialization 2) Fury is 65.6x faster than jackson for Struct deserialization 3) Fury is 9.4x faster than jackson for MediaContent serialization 4) Fury is 9.6x faster than jackson for MediaContent deserialization

see https://github.com/chaokunyang/fury-benchmarks for detailed benchmark code.

Another issue about json is that json is not storage efficient. For a float 0.3333333333333335, json needs 18 bytes, but fury needs only 4 bytes.

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