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.
| 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% |