CompressionRatings.Com is an open file compression benchmark using public programs and test files. It is a reference for both professionals and end-users looking for the latest information about the performance of lossless data compression software.
Status: 13450 GB of data de/compressed, 128 programs with total of 526 configurations tested.
2010 April 18 - May 2 [sticky]
A major update for the site. The changes include:
- A new test platform with 4-core CPU and 64-bit OS.
- New ranking system that is based upon how close a program is to the pareto frontier.
- The corpus is changed. Application1 and Application2 have been modified and a new Application4 test added. Image2 is removed.
- New result listings replacing the old "full" and "brief" listings. The simple "list" uses a new filtering method that attempts to show only the best entries for each compressor (April 22)
- New large data visualizations for compression ratio and time (available for each test in the test summary pages).
- Site layout changes.
- Timings are global. Fastest time of (maximum) 5 runs. (April 19)
- The size column for the reference files benchmark lists the raw compressed file size without decompressor size. (May 2)
- The listed sizes include compressed (7z) decompressor size (previously uncompressed).
Many thanks for numerous people who have sent comments and suggestions. Special thanks to Eugene Shelwien for many comments and ideas.
2010 August 4
paf 03a submitted.
New programs for bzip2 benchmark.
2010 July 10
bsc 2.2.5 submitted.
Added bzip2 benchmark.
2010 June 23
bcm 0.11 submitted.
Fixed some errors in pf-listings.
2010 June 19
bsc 2.2.0 submitted.
2010 June 3
nanozip 0.08a added.
csc 3.2a5 submitted.
2010 June 2
bsc 2.1.5 submitted.
2010 May 27
yzx 0.04 (and 0.03 May 22) submitted.
2010 May 20
freearc 0.666 submitted.
2010 May 14
csc 3.2a3 submitted.
Change to the main benchmark: Application2 is moved to the extended section to avoid having too much weight for long matches.
2010 May 9
csc 3.2a2 submitted.
Added a new file for the BWT comparison.
2010 May 4
bsc 2.0.0, yzx 0.01, 0.02 (May 7) submitted.
2010 May 2
csc 3.2a submitted.
2010 April 18-22
bsc 1.0.3, etincelle rc1, rc2, qpress 0.39 submitted.
pigz 2.1.4, pbzip2 1.0.5, 4x4 added.