simple-simd
json-benchmark
simple-simd | json-benchmark | |
---|---|---|
1 | 12 | |
0 | 169 | |
- | 2.4% | |
1.8 | 4.8 | |
about 2 years ago | about 1 month ago | |
Rust | C++ | |
Apache License 2.0 | Apache License 2.0 |
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simple-simd
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Good example of high performance Rust project without unsafe code?
Good point, I don't know the answer to this. What I ended up doing was creating my own "safe" wrappers for the AVX2 instructions (which is basically what you want to use for x86). There are other crates that provides safe interfaces, but they didn't really fit my needs.
json-benchmark
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Do You Know How Much Your Computer Can Do in a Second?
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
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Serde Json vs Rapidjson (Rust vs C++)
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?
- I'm a veteran C++ programmer, what can Rust offer me?
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Rust is just as fast as C/C++
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
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Lightweight template-based parser build system. Simple prototyping. Comfortable debugging. Effective developing.
The data for the test is taken from here: https://github.com/serde-rs/json-benchmark/tree/master/data
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Performance of serde js value conversion and reference types
Here are some benchmarks https://github.com/serde-rs/json-benchmark
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Serde zero-copy benchmarks?
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
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Android Developers Have A Tough Life
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.
What are some alternatives?
gearley - An Earley parser engine in Rust.
rust_serialization_benchmark - Benchmarks for rust serialization frameworks
cv - Rust CV mono-repo. Contains pure-Rust dependencies which attempt to encapsulate the capability of OpenCV, OpenMVG, and vSLAM frameworks in a cohesive set of APIs.
hjson-rust for serde - Hjson for Rust
yaep - Yet Another Earley Parser
simd-json - Rust port of simdjson
FFmpeg - Mirror of https://git.ffmpeg.org/ffmpeg.git
hyperjson - 🐍 A hyper-fast Python module for reading/writing JSON data using Rust's serde-json.
Symphonia - Pure Rust multimedia format demuxing, tag reading, and audio decoding library
MessagePack - MessagePack serializer implementation for Java / msgpack.org[Java]
image-gif - GIF en- and decoder
json - Strongly typed JSON library for Rust