lz4_flex

Configurable, pure rust, high performance implementation of LZ4 compression with fast compile times. Originally based on redox-os' lz4 compression, but now a complete rewrite.

Features

Very good logo
LZ4 Block format
High performance
1s clean release build time
feature flags to configure safe/unsafe code usage

Usage:

By default compression and decompression uses no usafe via the default feature flags "safe-encode" and "safe-decode". If you need more performance you can disable them (e.g. with no-default-features).

use lz4_flex::{compress_prepend_size, decompress_size_prepended};

fn main(){
    let input: &[u8] = b"Hello people, what's up?";
    let compressed = compress_prepend_size(input);
    let uncompressed = decompress_size_prepended(&compressed).unwrap();
    assert_eq!(input, uncompressed);
}

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, lz-fear and the c++ version via rust bindings. The lz4-flexx version is running in unsafe mode.

cargo bench