lzip-bug
[Top][All Lists]
Advanced

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

[Lzip-bug] Plzip 1.11 released


From: Antonio Diaz Diaz
Subject: [Lzip-bug] Plzip 1.11 released
Date: Tue, 23 Jan 2024 18:35:50 +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 1.11.

Plzip is a massively parallel (multi-threaded) implementation of lzip, compatible with lzip 1.4 or newer. 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.

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.

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:
51f48d33df659bb3e1e7e418275e922ad752615a5bc984139da08f1e6d7d10fd plzip-1.11.tar.lz d8e3cbe45c9222383339130e1bcc6e5e884d776b63f188896e6df67bc1d5626b plzip-1.11.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 1.11:

  * File diagnostics have been reformatted as 'PROGRAM: FILE: MESSAGE'.

* Diagnostics caused by invalid arguments to command-line options now show the argument and the name of the option.

* The option '-o, --output' now preserves dates, permissions, and ownership of the file when (de)compressing exactly one file.

* The option '-o, --output' now creates missing intermediate directories when writing to a file.

  * The variable MAKEINFO has been added to configure and Makefile.in.


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


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

--
If you are using gzip, bzip2, or xz, please consider the long-term advantages of switching to lzip:
http://www.nongnu.org/lzip/lzip_benchmark.html
http://www.nongnu.org/lzip/manual/lzip_manual.html#Quality-assurance
http://www.nongnu.org/lzip/safety_of_the_lzip_format.html




reply via email to

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