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Paq
Jul 20, 2023
Family of archivers with extremely high compression ratios
paq is a family of archivers with the best lossless compression ratios now available across a wide variety of test data, according to several benchmarks. A comparison of paq to other compression methods, on a 2GHz T3200, when compressing a large text file
Format Size Time sec Memory comp decomp ———– ——— ————– ——- Uncompressed 3,152,896 compress 1,319,521 1.6 0.2 .1 MB gzip -9 1,022,810 0.7 0.1 .1 MB bzip2 -9 860,097 0.6 0.4 5 MB p7zip 7z 824,573 1.5 0.1 195 MB xz -6 822,016 ? ? ? zpaq c1 fast 806,959 2 2 38 MB zpaq c2 mid 699,191 8 8 112 MB zpaq c3 max 644,190 20 20 246 MB
The port uses the open ZPAQ specification, and contains a public-domain C++ API for reading and writing ZPAQ compressed data to or from files or objects in memory; serial and multi-threaded archivers; extra preprocessors for compression; and stubs for creating self-extracting archives.
Checkout these related ports:
- Zutils - Utilities for searching in bzip2, gzip, lzip, and xz archives
- Zstr - C++ header-only ZLib wrapper
- Zstd - Fast real-time compression algorithm
- Zpaqfranz - Swiss army knife for the serious backup manager
- Zopfli - Zopfli Compression Algorithm
- Zoo - Manipulate archives of files in compressed form
- Zlib-ng - Fork of the zlib data compression library
- Zipper - Tool for inspecting the contents of a compressed archive
- Zipmix - Produce .ZIP file from two other ones with the best compressed files
- Zip - Create/update ZIP files compatible with PKZIP
- Zchunk - Compressed file format that splits the file into independent chunks
- Xpk - The eXternal PacKer (XPK) library system
- Xmill - Efficient compressor for XML
- Xdms - Tool for decompressing Amiga DMS files
- Xarchiver - Desktop-agnostic GTK frontend to various archiving tools