lz4_flex

Pure rust implementation of lz4 compression and decompression.

This is based on redox-os' lz4 compression. The redox implementation is quite slow with only around 300MB/s decompression, 200MB/s compression and the api ist quite limited. It's planned to address these shortcomings.

Usage:

use lz4_compression::prelude::{ decompress, compress };

fn main(){
    let uncompressed_data: &[u8] = b"Hello people, what's up?";

    let compressed_data = compress(uncompressed_data);
    let decompressed_data = decompress(&compressed_data).unwrap();

    assert_eq!(uncompressed_data, decompressed_data.as_slice());
}

Benchmarks

The benchmark is run with criterion on set of test files are in the folder benches.

Currently 3 implementations are compared, this one, the redox version and the c++ version via rust bindings

cargo bench

Results v0.3 18-10-2020

Executed on Macbook Pro 2017 i7

• lz4_redox_rust: https://crates.io/crates/lz4-compress
• lz4_cpp: https://crates.io/crates/lz4
• lz-fear: https://github.com/main--/rust-lz-fear

Fuzzer

This fuzz target fuzzes, and asserts compression and decompression returns the original input. cargo fuzz run fuzz_target_1