A backup suite. Supports FLZMA2, bzip3, LZ4, Zstandard, LSH i-node ordering deduplicating archiver, long range deduplication, encryption and recovery records. Also a refurbished partial rewrite of lrzip in active development.
% git clone --recurse-submodules https://github.com/kspalaiologos/modern-rzip
% cd modern-rzip && ./configure && make -j$(nproc) common all && sudo make install
# Compress:
ar-mrzip -c data_dir | mrzip -L9 > data_dir.mar
# Decompress:
mkdir data_dir && mrzip -d < data_dir.mar | ar-mrzip -x data_dir
modern-rzip applies a two-step process and reads file or STDIN input, passes it to the rzip pre-processor. The rzip pre-processor applies long-range redundancy reduction and then passes the streams of data to a back-end compressor. modern-rzip will, by default, test each stream with a compressibility test using lz4 prior to compression. The selected back-end compressor works on smaller data sets and ignore streams of data that may not compress well. The end result is significantly faster compression than standalone compressors and much faster decompression.
modern-rzip's compressors are:
- Fast LZMA2 (default)
- Zstandard
- LZ4
- zpaq
- bzip3
- rzip (pre-processing only)
modern-rzip's memory management scheme permits maximum use of system ram to pre-process files and then compress them.
Con Kolivas - the creator of lrzip, Peter Hyman - maintainer of the lrzip-next fork.
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