diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-11-30 08:55:12 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-11-30 08:55:12 +0000 |
commit | e532a008165c58a0113b41619f09cb444e1dc159 (patch) | |
tree | 39ddcb7a19bd3d4f1a31781c6c803998491c5e17 /doc/plzip.1 | |
parent | Releasing debian version 1.11-2. (diff) | |
download | plzip-e532a008165c58a0113b41619f09cb444e1dc159.tar.xz plzip-e532a008165c58a0113b41619f09cb444e1dc159.zip |
Merging upstream version 1.12~rc1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/plzip.1')
-rw-r--r-- | doc/plzip.1 | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/doc/plzip.1 b/doc/plzip.1 index 3985e5b..7f16c55 100644 --- a/doc/plzip.1 +++ b/doc/plzip.1 @@ -1,32 +1,33 @@ .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.49.2. -.TH PLZIP "1" "January 2024" "plzip 1.11" "User Commands" +.TH PLZIP "1" "November 2024" "plzip 1.12-rc1" "User Commands" .SH NAME plzip \- reduces the size of files .SH SYNOPSIS .B plzip [\fI\,options\/\fR] [\fI\,files\/\fR] .SH DESCRIPTION -Plzip is a massively parallel (multi\-threaded) implementation of lzip, -compatible with lzip 1.4 or newer. Plzip uses the compression library lzlib. +Plzip is a massively parallel (multi\-threaded) implementation of lzip. Plzip +uses the compression library lzlib. .PP 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 \fB\-0\fR) or compress most -files more than bzip2 (lzip \fB\-9\fR). 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. +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 \fB\-0\fR' compresses about as fast as +gzip, while 'lzip \fB\-9\fR' 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. .PP 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. +hundreds of processors, but on files smaller than 1 MiB plzip is no faster +than lzip (even at compression level \fB\-0\fR). +The number of threads defaults to the number of processors. .SH OPTIONS .TP \fB\-h\fR, \fB\-\-help\fR @@ -132,8 +133,8 @@ License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html> .br This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. -Using lzlib 1.14 -Using LZ_API_VERSION = 1014 +Using lzlib 1.15\-rc1 +Using LZ_API_VERSION = 1015 .SH "SEE ALSO" The full documentation for .B plzip |