lzip-bug
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Lzip-bug] Plzip 1.12 released


From: Antonio Diaz Diaz
Subject: [Lzip-bug] Plzip 1.12 released
Date: Thu, 16 Jan 2025 16:52:25 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14

I am pleased to announce the release of plzip 1.12.

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

The sources can be downloaded from http://download.savannah.gnu.org/releases/lzip/plzip/

The sha256sums are:
44bbede2b2e238f05b9921289f9d7de226b79582a6376a5d10ebfcbb87713a84 plzip-1.12.tar.lz 50d71aad6fa154ad8c824279e86eade4bcf3bb4932d757d8f281ac09cfadae30 plzip-1.12.tar.gz

This release is also GPG signed. You can download the signature by appending '.sig' to the URL. If the 'gpg --verify' command fails because you don't have the required public key, then run this command to import it:

  gpg --recv-keys 8FE99503132D7742

Key fingerprint = 1D41 C14B 272A 2219 A739  FA4F 8FE9 9503 132D 7742


Changes in version 1.12:

* 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.


Please send bug reports and suggestions to lzip-bug@nongnu.org


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 Thanks




reply via email to

[Prev in Thread] Current Thread [Next in Thread]