Long Range Zip (Lrzip) is a compression program that can achieve very high compression ratios and speed when used with large files. It uses the combined compression algorithms of zpaq and lzma for maximum compression, lzo for maximum speed, and the long range redundancy reduction of rzip.
It’s designed to scale with increases with RAM size, improving compression further.
A choice of either size or speed optimizations allows for either better compression than even lzma can provide, or better speed than gzip, but with bzip2 sized compression levels.
- Heavily multithreaded with the backend compression and decompression phase.
- Uses an extended version of rzip which does a first pass long distance redundancy reduction.
- Compression algorithm can be chosen to be optimised for size (lzma – default), speed (lzo), legacy (bzip2) or (gzip) or can be omitted.
- lrzcat – automatically decompresses .lrz files to stdout.
- Works with stdin/stdout.
- Sliding mmap implementation.
Developer: Con Kolivas and contributors
License: GNU General Public License v2.0
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