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The Original Shareware 1992
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RESULTS.DOC
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1991-04-10
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COMPRESSION COMPARISON TEST RESULTS - April 9, 1991
2.00 RESULTS SUMMARY:
---------------------
To facilitate repeatable test results I have used the contents of the
original PKZIP 1.10 distribution archive, PKZ110.EXE, as the base data
to compress.
The PKZIP 1.10 distribution archive totals 302196 bytes.
ARCHIVER PACKED SIZE COMPRESS TIME EXTRACT TIME
--------------- ----------- ------------- ------------
ARJ 1.10 -m4 153186 1:43.9 0:55.1
ARJ 2.00 -m4 145374 1:33.3 0:54.8
ARJ 1.10 -m3 140588 2:00.6 0:53.3
PAK 2.51 138309 2:26.2 0:53.0
LHARC 1.13c 137450 4:05.7 1:46.1
HYPER 2.50 136543 2:30.4 1:54.7
PKZIP 1.10 136245 2:12.0 0:34.5
ARJ 2.00 -m3 135185 1:50.2 0:53.1
ARJ 1.10 -m2 133641 4:50.6 0:53.0
ARJ 2.00 -m2 130994 1:53.0 0:52.5
ARJ 1.10 (-m1) 130886 4:43.2 0:52.5
LHA 2.10 130606 2:39.1 0:50.4
ARJ 2.00 (-m1) 129002 2:17.4 0:50.9
ARJ 2.00 -jm 127975 3:57.7 0.50.0
NOTES:
ARJ 2.00 produced the best COMPRESSION SPEED and COMPRESSION SIZE
results in this test. PKZIP had the fastest EXTRACTION SPEED.
PAK, HYPER, LHARC, and PKZIP compression size results are very similar.
LHA and ARJ performed significantly better at size reduction. ARJ 2.00
almost always produced better compression ratios than ALL of the other
archivers.
This test was run on a 8 MHz 8088 PC with 20 MB hard drive and 512 K
ram. The archives were processed on a ram disk.
end of document