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Aminet 22
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Aminet 22 (1997)(GTI - Schatztruhe)[!][Dec 1997].iso
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README.AMIGA
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1997-10-24
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60 lines
I found this archive in the GIMP distribution, and thought I'd try it
out. It compiled straight out of the box with GCC, and to my surprise the
results were quite astounding.
Since Jonathan Forbes has sold the rights to LZX to M$, further
development is unlikely to come of any use to us Amigans. Anyone care for
using some of the algorithms in here?
Since it's from the Unix world, there isn't much support re. multiple
files, directory recursing, but check out the tar-archive benchmarks for a
quick idea on what could be done. You may notice that the difference
between bzip & lzx decrease when the blocksizes of lzx grow. This is due
to a maximum blocksize of bzip of 900 kb.
Also, it wasn't me who did this thing, give the author credit for his work!
The tests were done with:
lzx 1.21
lha 1.38
gzip 1.2.4
commandlines:
gzip -9 <FILE>
lzx -9 -M5000 a <FILE>
bzip2 -9 <FILE>
lha a <FILE>
and the timing is courtesy of executive & timer
intuition.doc : 358620 bytes
-------+------------+--------------+--------------
packer | comp. time | decomp. time | size
-------+------------+--------------+--------------
bzip2 | 23.81 s | 5.11 s | 66398 bytes
-------+------------+--------------+--------------
lzx | 55.17 s | 1.54 s | 82978 bytes
-------+------------+--------------+--------------
gzip | 10.51 s | 1.30 s | 91318 bytes
-------+------------+--------------+--------------
lha | 7.30 s | 1.50 s | 103247 bytes
-------+------------+--------------+--------------
include.tar : 2764800 bytes
-------+------------+--------------+--------------
packer | comp. time | decomp. time | size
-------+------------+--------------+--------------
bzip2 | 2 m 46 s | 48 s | 680643 bytes
-------+------------+--------------+--------------
lzx | 10 m 48 s | 8.08 s | 702820 bytes
-------+------------+--------------+--------------
gzip | 2 m 0 s | 14.2 s | 775186 bytes
-------+------------+--------------+--------------
lha | 1 m 8 s | 8.24 s | 831226 bytes
-------+------------+--------------+--------------