AuroraMiddleware/lz4
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Takayuki MATSUOKA 525cb11c22 Fix BSD sed error reported by Yue Du 
This change is related to LZ4 issue #14.

 - Add more unique pattern to line recognition
 - Change Extended Regular Expression to Basic Regular Expression
2014-07-30 18:41:45 +09:00
cmake_unofficial Large decompression speed improvement for GCC 32-bits. Thanks to Valery Croizier ! 2014-02-04 14:11:10 +00:00
programs fix : minor compilation warning under mingw 2014-07-29 21:57:09 +01:00
.travis.yml Makefile : some corrections suggested by Michał Górny (issue 136) 2014-07-21 21:01:59 +01:00
liblz4.pc.in Added : pkg-config (issue 135) 2014-07-20 17:18:48 +02:00
LICENSE Fixed issue 127 & 128 2014-04-15 15:03:17 +02:00
lz4_format_description.txt Makefile : added capability to install libraries 2014-01-07 18:47:50 +00:00
lz4.c Added : LZ4_versionNumber(), thanks to Takayuki Matsuoka 2014-07-21 19:42:12 +01:00
lz4.h Added : LZ4_versionNumber(), thanks to Takayuki Matsuoka 2014-07-21 19:42:12 +01:00
lz4hc.c restored LZ4 HC streaming mode 2014-06-11 21:40:16 +01:00
lz4hc.h CLI : can select compression level > 9 2014-06-11 22:02:46 +01:00
LZ4_Streaming_Format.odt Makefile : New install script and man page, contributed by Prasad Pandit 2013-09-25 09:00:37 +00:00
Makefile Fix BSD sed error reported by Yue Du 2014-07-30 18:41:45 +09:00
NEWS Added : Makefile : install for kFreeBSD and Hurd (Nobuhiro Iwamatsu) 2014-07-26 15:15:00 +01:00
README.md Travis status for both master & dev branches, thanks to Takayuki Matsuoka 2014-05-03 02:49:14 +01:00

README.md

LZ4 - Extremely fast compression

LZ4 is lossless compression algorithm, providing compression speed at 400 MB/s per core, scalable with multi-cores CPU. It also features an extremely fast decoder, with speed in multiple GB/s per core, typically reaching RAM speed limits on multi-core systems. A high compression derivative, called LZ4_HC, is also provided. It trades CPU time for compression ratio.

Branch Status
master Build Status
dev Build Status

This is an official mirror of LZ4 project, hosted on Google Code. The intention is to offer github's capabilities to lz4 users, such as cloning, branch, or source download.

The "master" branch will reflect, the status of lz4 at its official homepage. Other branches will also exist, typically to fix some open issues or new requirements, and be available for testing before merge into master.

Benchmarks

The benchmark uses the Open-Source Benchmark program by m^2 (v0.14.2) compiled with GCC v4.6.1 on Linux Ubuntu 64-bits v11.10, The reference system uses a Core i5-3340M @2.7GHz. Benchmark evaluates the compression of reference Silesia Corpus in single-thread mode.

CompressorRatioCompressionDecompression
LZ4 (r101)2.084422 MB/s1820 MB/s
LZO 2.062.106414 MB/s600 MB/s
QuickLZ 1.5.1b62.237373 MB/s420 MB/s
Snappy 1.1.02.091323 MB/s1070 MB/s
LZF2.077270 MB/s570 MB/s
zlib 1.2.8 -12.73065 MB/s280 MB/s
LZ4 HC (r101)2.72025 MB/s2080 MB/s
zlib 1.2.8 -63.09921 MB/s300 MB/s