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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-11-30 08:55:12 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-11-30 08:55:12 +0000 |
| commit | e532a008165c58a0113b41619f09cb444e1dc159 (patch) | |
| tree | 39ddcb7a19bd3d4f1a31781c6c803998491c5e17 /README | |
| parent | Releasing debian version 1.11-2. (diff) | |
| download | plzip-e532a008165c58a0113b41619f09cb444e1dc159.tar.xz plzip-e532a008165c58a0113b41619f09cb444e1dc159.zip | |
Merging upstream version 1.12~rc1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 28 |
1 files changed, 14 insertions, 14 deletions
@@ -1,26 +1,26 @@ Description -Plzip is a massively parallel (multi-threaded) implementation of lzip, -compatible with lzip 1.4 or newer. Plzip uses the compression library lzlib. +Plzip is a massively parallel (multi-threaded) implementation of lzip. Plzip +uses the compression library lzlib. Lzip is a lossless data compressor with a user interface similar to the one -of gzip or bzip2. Lzip uses a simplified form of the 'Lempel-Ziv-Markov -chain-Algorithm' (LZMA) stream format to maximize interoperability. The -maximum dictionary size is 512 MiB so that any lzip file can be decompressed -on 32-bit machines. Lzip provides accurate and robust 3-factor integrity -checking. Lzip can compress about as fast as gzip (lzip -0) or compress most -files more than bzip2 (lzip -9). Decompression speed is intermediate between -gzip and bzip2. Lzip is better than gzip and bzip2 from a data recovery -perspective. Lzip has been designed, written, and tested with great care to -replace gzip and bzip2 as the standard general-purpose compressed format for -Unix-like systems. +of gzip or bzip2. Lzip uses a simplified form of LZMA (Lempel-Ziv-Markov +chain-Algorithm) designed to achieve complete interoperability between +implementations. The maximum dictionary size is 512 MiB so that any lzip +file can be decompressed on 32-bit machines. Lzip provides accurate and +robust 3-factor integrity checking. 'lzip -0' compresses about as fast as +gzip, while 'lzip -9' compresses most files more than bzip2. Decompression +speed is intermediate between gzip and bzip2. Lzip provides better data +recovery capabilities than gzip and bzip2. Lzip has been designed, written, +and tested with great care to replace gzip and bzip2 as general-purpose +compressed format for Unix-like systems. Plzip can compress/decompress large files on multiprocessor machines much faster than lzip, at the cost of a slightly reduced compression ratio (0.4 to 2 percent larger compressed files). Note that the number of usable threads is limited by file size; on files larger than a few GB plzip can use -hundreds of processors, but on files of only a few MB plzip is no faster -than lzip. +hundreds of processors, but on files smaller than 1 MiB plzip is no faster +than lzip (even at compression level -0). For creation and manipulation of compressed tar archives tarlz can be more efficient than using tar and plzip because tarlz is able to keep the |