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[Lzip-bug] Plzip 1.12-rc1 released


From: Antonio Diaz Diaz
Subject: [Lzip-bug] Plzip 1.12-rc1 released
Date: Fri, 29 Nov 2024 16:47:18 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14

Plzip 1.12-rc1 is ready for testing here
http://download.savannah.gnu.org/releases/lzip/plzip/plzip-1.12-rc1.tar.lz
http://download.savannah.gnu.org/releases/lzip/plzip/plzip-1.12-rc1.tar.gz

The sha256sums are:
6b191de102bad83b47f1ce9cd480a8778611fc9cfad4eeec1b48bb91f20ec82f plzip-1.12-rc1.tar.lz 3ee240c87a22776cce37c90691155cad9b11e3ef7e7d7688d4eaccfb6b0764cc plzip-1.12-rc1.tar.gz

Please, test it and report any bugs you find.

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 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 smaller than 1 MiB plzip is no faster than lzip (not even at compression level -0).

The homepage is at http://www.nongnu.org/lzip/plzip.html

Changes in this version:

* plzip now exits with error status 2 if any empty member is found in a multimember file.

  * Scalability when decompressing to standard output has been increased.

* The chapter 'Syntax of command-line arguments' has been added to the manual.


Regards,
Antonio Diaz, plzip co-author and maintainer.

--
If you know someone who is using gzip, bzip2, or xz, please tell him/her about the advantages of switching to lzip. See
http://www.nongnu.org/lzip/manual/lzip_manual.html#Quality-assurance and
http://www.nongnu.org/lzip/lzip_benchmark.html




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