| commit | b93f629681ad3245a09add28e4d0b2e43bcde58a | [log] [download] |
|---|---|---|
| author | Yann Collet <yann.collet.73@gmail.com> | Mon Mar 30 18:31:55 2015 +0100 |
| committer | Yann Collet <yann.collet.73@gmail.com> | Mon Mar 30 18:31:55 2015 +0100 |
| tree | 6fd3ad884811d2350e3d02d52f65ca84daabbf0b | |
| parent | eeb8bea34c2df279307eaed922f3a89cc420316c [diff] |
changed file name
- lz4_Block_format.md[Renamed from lz4_block_format.txt - diff]
- .gitattributes
- .travis.yml
- LZ4_Frame_Format.html
- Makefile
- NEWS
- README.md
- cmake_unofficial/
- examples/
- images/
- lib/
- lz4_Block_format.md
- programs/
- visual/2012/
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 |  |
| dev |  |
Branch Policy:
- The “master” branch is considered stable, at all times.
- The “dev” branch is the one where all contributions must be merged before being promoted to master.
- If you plan to propose a patch, please commit into the “dev” branch. Direct commit to “master” are not permitted.
- Feature branches can also exist, for dedicated testing of larger modifications before merge into “dev” branch.
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.
The LZ4 block compression format is detailed within lz4_block_format.txt.
For streaming unknown amount of data and compress files of any size, a frame format has been published, and can be consulted within the file LZ4_Frame_Format.html .