Mail Archives: djgpp/1996/11/12/05:15:32
Hi all,
I've just finished writing the compression routines for a new free
archiver (still got the archiving bits to go). I'm going to distribute the
sources in the hope that they can be ported to a few different
operating systems in the spirit of Info-Zip. Here are some figures of
the compression gained on some of the v2.0 distribution archives
(haven't got v2.01 yet).
zip new
lgp271b 633,570 346,896
txi360b 550,850 408,921
djlsr200 1,214,480 555,716
djdev200 1,121,916 652,589
mak373b 196,928 164,776
gcc272b 1,070,665 859,981
bnu252b 1,257,436 543,677
gdb412b 454,984 400,411
total 6,500,829 3,932,967
This is a 40% saving over pkzip - over 2.5Mb on these files. The
speed is between 1 to 2 times as long as pkzip's maximum compression
mode, and it uses less than 3Mb of memory. The compression was
performed by using pkzip with no compression, then running the new
compressor over that zip-file.
Now for a few questions. What should I call it? This may sound like a
trivial thing (it is really :), but I don't have any ideas. Anyone
want to help with porting efforts?
Thanks,
Malcolm
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