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A comment on Amazon Ion – A richly-typed, self-describing, hierarchical serialization format. Parent comment

Re:Amazon Ion – A richly-typed, self-describing, hierarchica... by hliyan on Saturday November 20, 2021 @05:35AM (#29286910)
It was a proprietary messaging middleware library. We actually found even FAST FIX slow.
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Re:Amazon Ion – A richly-typed, self-describing, hierarchica... by o_bender on Saturday November 20, 2021 @11:50AM (#29289667)
FAST FIX protocol is terrible performance-wise, its format requires multiple branching at every field parsing. Even "high-performance" libraries like mFAST are slow: I recently helped a client to optimize parsing for several messages and got 8x speed improvement over mFAST (which is a big deal in HFT space).
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