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[Lzip-bug] Plzip 1.3-pre1 released

From: Antonio Diaz Diaz
Subject: [Lzip-bug] Plzip 1.3-pre1 released
Date: Fri, 28 Nov 2014 18:27:54 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.7.11) Gecko/20050905

Plzip 1.3-pre1 is ready for testing here

The sha1sums are:
c51907a5d8e0cda7da9f151efef5d10cbed838fd  plzip-1.3-pre1.tar.lz
08e425e975d1480d40a083518fc50bbd8a61d9ea  plzip-1.3-pre1.tar.gz

Please, test it and report any bugs you find.

Plzip is a massively parallel (multi-threaded) lossless data compressor based on the lzlib compression library, with a user interface similar to the one of lzip, bzip2 or gzip.

Plzip can compress/decompress large files on multiprocessor machines much faster than lzip, at the cost of a slightly reduced compression ratio. 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.

Plzip uses the lzip file format; the files produced by plzip are fully compatible with lzip-1.4 or newer, and can be rescued with lziprecover.

A nice feature of the lzip format is that a corrupt byte is easier to repair the nearer it is from the beginning of the file. Therefore, with the help of lziprecover, losing an entire archive just because of a corrupt byte near the beginning is a thing of the past.

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

Changes in this version:

* Testing of a non-seekable file or of standard input now uses up to 30 MiB less memory per thread.

* "-dvvv" and "-tvvv" now show the dictionary size of the first member, producing the same output as lzip for single-member files.

* A missing "const" has been added to the declaration of the "compress" function in "lzip.h".

* Chapters "Memory requirements" and "Minimum file sizes" have been added to the manual.

* The targets "install-compress", "install-strip-compress", "install-info-compress" and "install-man-compress" have been added to the Makefile. (Installing compressed docs may become the default in the future).

Antonio Diaz, plzip co-author and maintainer.

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