Versions tested: 0, c
Optimal parameters: default
Authors: Matt Mahoney, Eugene Shelwien
Algorithms: O0+ARI
Notable peformances: -


FPAQ0 is a simple order-0 arithmetic file compressor for stationary sources (independent bytes with a uniform distribution throughout the file).
the program website March 31, 2009


Series of optimizations for version 0p (called 0pv4B) have been made by Eugene Shelwien.

fpaq0pv4B - fpaq0p optimization featuring
authors description, email April 9, 2009


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Qualified configurations
Ver Rating CPR DPR S.E. R.E. Ratio C. kB/s D. kB/s
0 0 0 0 1 0 1.443 6621 6071
c 0 + 1.770 +23% 5677 -14% 7699 +27%

Version info

0, tar: yes, mode: 32-bit, crc32: 74b7a969, decoder: 4 kB, tested: 2010 Apr 22
compression: fpaq0.exe c <src> <cfile>
decompression: fpaq0.exe d <cfile> <src>
c, tar: yes, mode: 32-bit, crc32: 1f7e1958, decoder: 5 kB, tested: 2010 Apr 22
compression: fpaqc.exe c <src> <cfile>
decompression: fpaqc.exe d <cfile> <src>