NAME¶
lz4c - Tool using Fast LZ compression algorithm library
SYNOPSIS¶
lz4c [options] file ...
DESCRIPTION¶
LZ4 is a very fast lossless compression algorithm. This uses Dictionary
compression, and only supports compression and decompression unit blocks.
Infomation about compression ratio and speed (from webpage of lz4): single
thread, Core 2 Duo @3GHz, using the Open-Source Benchmark program by m^2
compiled with GCC v4.5.2, on the Silesia Corpus.
Name Ratio C.speed D.speed
LZ4 (r59) 2.084 330 915
LZO 2.05 1x_1 2.038 311 480
QuickLZ 1.5 -1 2.233 257 277
Snappy 1.0.5 2.024 227 729
LZF 2.076 197 465
FastLZ 2.030 190 420
zlib 1.2.5 -1 2.728 39 195
LZ4 HC (r66) 2.712 18 1020
zlib 1.2.5 -6 3.095 14 210
OPTIONS:¶
- -H
- Help (this text + advanced options)
- -c0/-c
- Fast compression (default)
- -c1/-hc
- -c1/-hc: High compression
- -d
- decompression
- -y
- overwrite without prompting
AUTHOR¶
This manual page was written by Nobuhiro Iwamatsu <iwamatsu@debian.org>
for the Debian GNU/Linux system (but may be used by others).