hjson-rust for serde VS json-benchmark

hjson-rust for serde

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Tracking mentions began in Dec 2020.

json-benchmark

• Do You Know How Much Your Computer Can Do in a Second?
  2 projects | news.ycombinator.com | 22 Jun 2023

  I don’t really understand what this is trying to prove:

  - you don’t seem to specify the size of the input. This is the most important omission

  - you are constructing an optimised representation (in this case, strict with fields in the right places) instead of a generic ‘dumb’ representation that is more like a tree of python dicts

  - rust is not a ‘moderately fast language’ imo (though this is not a very important point. It’s more about how optimised the parser is, and I suspect that serde_json is written in an optimised way, but I didn’t look very hard).

  I found[1], which gives serde_json to a dom 300-400MB/s on a somewhat old laptop cpu. A simpler implementation runs at 100-200, a very optimised implementation gets 400-800. But I don’t think this does that much to confirm what I said in the comment you replied to. The numbers for simd json are a bit lower than I expected (maybe due to the ‘dom’ part). I think my 50MB/a number was probably a bit off but maybe the python implementation converts json to some C object and then converts that C object to python objects. That might half your throughput (my guess is that this is what the ‘strict parse’ case for rustc_serialise is roughly doing).

  [1] https://github.com/serde-rs/json-benchmark

• Serde Json vs Rapidjson (Rust vs C++)
  6 projects | /r/rust | 17 Jan 2023

  But the code OP posted deserializes JSON without knowing anything about the structure, which is known to be slow in serde-json and doesn't appear to be the focus for the library. The json and json-deserializer crates should perform much better in that scenario.

• Good example of high performance Rust project without unsafe code?
  20 projects | /r/rust | 2 Aug 2022
• I'm a veteran C++ programmer, what can Rust offer me?
  2 projects | /r/rust | 24 Mar 2022
• Rust is just as fast as C/C++
  6 projects | /r/rust | 23 Feb 2022

  Of course that doesnt mean that in practice the available libraries are as optimized. Did you try actix? It tends to be faster than rocket. Also json-rust and simd-json are usually faster than serde-json, when you don't deserialize a known structure. Here are some benchmarks: https://github.com/serde-rs/json-benchmark

• Lightweight template-based parser build system. Simple prototyping. Comfortable debugging. Effective developing.
  1 project | /r/dartlang | 23 Jan 2022

  The data for the test is taken from here: https://github.com/serde-rs/json-benchmark/tree/master/data

• Performance of serde js value conversion and reference types
  1 project | /r/rust | 10 Nov 2021

  Here are some benchmarks https://github.com/serde-rs/json-benchmark

• Serde zero-copy benchmarks?
  2 projects | /r/rust | 1 Apr 2021

  I found two projects: * https://github.com/djkoloski/rust_serialization_benchmark - doesn't use Serde zero copy * https://github.com/serde-rs/json-benchmark - has copy vs borrowed, but the results were the same for both, so something's off there

• Android Developers Have A Tough Life
  1 project | /r/ProgrammerAnimemes | 3 Mar 2021

  Rust has a good enough standard library (I’d say comparable to C++), that you don’t really need packages for a lot of stuff. Most of my projects have 1 or 2 dependencies. Most of the time I am pulling in a JS parser (serde) and a parallelization library (rayon). These are both high performance libraries that make writing very fast (serde can handle 850 MB/s on a 5 year old laptop cpu per their benchmarks). Rayon is one of the best parallelism libraries I’ve worked with.