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Adding upstream version 1.12.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-02-24 04:19:56 +01:00
parent e02fc6c801
commit 23ff2822be
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
19 changed files with 83 additions and 95 deletions
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README
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@ -1,3 +1,5 @@
See the file INSTALL for compilation and installation instructions.
Description
Plzip is a massively parallel (multi-threaded) implementation of lzip. Plzip
@ -20,7 +22,7 @@ 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 (even at compression level -0).
than lzip (not even at compression level -0).
For creation and manipulation of compressed tar archives tarlz can be more
efficient than using tar and plzip because tarlz is able to keep the
@ -40,11 +42,10 @@ decompressed in parallel.
The lzip file format is designed for data sharing and long-term archiving,
taking into account both data integrity and decoder availability:
* The lzip format provides very safe integrity checking and some data
recovery means. The program lziprecover can repair bit flip errors
(one of the most common forms of data corruption) in lzip files, and
provides data recovery capabilities, including error-checked merging
of damaged copies of a file.
* The program lziprecover can repair bit flip errors (one of the most
common forms of data corruption) in lzip files, and provides data
recovery capabilities, including error-checked merging of damaged
copies of a file.
* The lzip format is as simple as possible (but not simpler). The lzip
manual provides the source code of a simple decompressor along with a
@ -66,9 +67,8 @@ makes it safer than compressors returning ambiguous warning values (like
gzip) when it is used as a back end for other programs like tar or zutils.
Plzip automatically uses for each file the largest dictionary size that does
not exceed neither the file size nor the limit given. Keep in mind that the
decompression memory requirement is affected at compression time by the
choice of dictionary size limit.
not exceed neither the file size nor the limit given. The dictionary size
used for decompression is the same dictionary size used for compression.
When compressing, plzip replaces every file given in the command line
with a compressed version of itself, with the name "original_name.lz".
@ -102,8 +102,11 @@ LANGUAGE NOTE: Uncompressed = not compressed = plain data; it may never have
been compressed. Decompressed is used to refer to data which have undergone
the process of decompression.
Plzip uses Arg_parser for command-line argument parsing:
http://www.nongnu.org/arg-parser/arg_parser.html
Copyright (C) 2009-2024 Antonio Diaz Diaz.
Copyright (C) 2009-2025 Antonio Diaz Diaz.
This file is free documentation: you have unlimited permission to copy,
distribute, and modify it.