MComp

I mentioned on the first page that WinRK would not be included in this benchmark; however, MComp, by the same author as WinRK, was available in command-line form. The tool offers a variety of compression algorithms, but the ROLZ-based options (which, if I understand correctly, are the same family as those used in WinRK’s format) produced runtime errors, and so they could not be counted.

LibMComp Demo Compressor (v2.00).
Copyright (c) 2008 M Software Ltd.
 
mcomp [options] pofile(s)
 
Options:
    -m[..]    Compression method:
              b    - BZIP2.
              c    - Experimental DMC codec.
              d    - Optimised deflate (df - fast, dx - max)
              d64  - Optimised deflate64 (d64f - fast, d64x - max)
              lz   - Optimised LZ (lzf - fast, lzx - max)
              f    - Optimised ROLZ (ff - fast, fx - max)
              f3   - Optimised ROLZ3 (f3f - fast, f3x - max)
              p    - PPMd var.J.
              sl   - Bitstream (LSB first).
              sm   - Bitstream (MSB first).
              w    - Experimental BWT codec.
    -MNN[k,m] Model size (in kb (default) or Mb, default 64M).
    -oNN      Order (for Bitstream and PPMd).
    -np       Display no progress information.
MCOMP
Command 32-bit 64-bit Difference
Average -5.966%
mcomp -mb 149.168 134.379 -9.914%
mcomp -md 1388.830 1319.440 -4.996%
mcomp -md64 20741.721 18277.810 -11.879%
mcomp -mdlz 1389.812 1312.779 -5.543%
mcomp -mdf error error
mcomp -mdf3x error error
mcomp -mdp 1391.918 1318.660 -5.263%
mcomp -mdsl 1394.726 1315.010 -5.525%
mcomp -mdsm 1381.810 1318.192 -4.604%
mcomp -mdw 1394.180 1309.846 -6.049%

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§4991 · March 6, 2010 · Tags: , , ·

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