[Top][All Lists]

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

[Lzip-bug] Plzip 1.8-pre1 released

From: Antonio Diaz Diaz
Subject: [Lzip-bug] Plzip 1.8-pre1 released
Date: Sun, 14 Oct 2018 11:35:57 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv: Gecko/20110420 SeaMonkey/2.0.14

Plzip 1.8-pre1 is ready for testing here

The sha256sums are:
89bcde63d29ece5947157d9e869f79a542f589e9cbca716b779c3d879df0e282 plzip-1.8-pre1.tar.lz 9b6870f8a1ca8bfbc689a32552cae25dc1e80c9e07dd39b06bab3f196a6e6142 plzip-1.8-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 (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.

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.

The lzip file format is designed for data sharing and long-term archiving, taking into account both data integrity and decoder availability.

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

Changes in this version:

* The new options '--in-slots' and '--out-slots', setting the number of input and output packets buffered during streamed decompression, have been added. Increasing the number of packets may increase decompression speed, but requires more memory.

* The default number of input packets buffered per worker thread when decompressing from non-seekable input has been increased from 2 to 4.

* The default number of output packets buffered per worker thread when decompressing to non-seekable output has been increased from 32 to 64.

* Detection of forbidden combinations of characters in trailing data has been improved.

  * Errors are now also checked when closing the input file.

* The descriptions of '-0..-9', '-m' and '-s' in the manual have been improved.

* The configure script now accepts the option '--with-mingw' to enable the compilation of plzip under MS Windows (with the MinGW compiler). Use with care. The Windows I/O functions used are not guaranteed to be thread safe.

* The configure script now accepts appending options to CXXFLAGS using the syntax 'CXXFLAGS+=OPTIONS'.

  * It has been documented in INSTALL the use of
CXXFLAGS+='-D __USE_MINGW_ANSI_STDIO' when compiling on MinGW.

Antonio Diaz, plzip co-author and maintainer.

If you are distributing software in xz format, please consider using lzip instead. See http://www.nongnu.org/lzip/lzip_benchmark.html#xz1 and http://www.nongnu.org/lzip/xz_inadequate.html

Europe has a problem. Either the catalan leaders imprisoned in Spain are political prisoners, or Belgium, Germany, Scotland and Switzerland are helping common criminals (the catalan leaders in exile) evade Spanish justice.

reply via email to

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