To: CRUNCHers Date:09/05/86
From: Paul Foote
Subject: CRUNCH20 Benchmarking
I think the two items below will be of interest to anyone
involved with data compression.
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Msg#: 237 Date: 09/05/86
From: SYSOP (Gary Inman, West Los Angeles RCP/M)
To: ALL
Re: CRUNCH20
TEST FILES CRUNCH12 CRUNCH20
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MEXPAT22.ASM 8k MEXPAT22.AZM 6k MEXPAT22.AZM 4k
MXH-CC1 .ASM 18k MXH-CC1 .AZM 12k MXH-CC1 .AZM 10k
NCCSBIOS.ASM 32k NCCSBIOS.AZM 18k NCCSBIOS.AZM 16k
NEW06 .ASM 20k NEW06 .AZM 12k NEW06 .AZM 10k
NKMD102 .ASM 160k NKMD102 .AZM 108k NKMD102 .AZM 76k
SYSMAP3 .ASM 4k SYSMAP3 .AZM 2k SYSMAP3 .AZM 2k
TELL .ASM 6k TELL .AZM 4k TELL .AZM 4k
ZCMD28 .ASM 80k ZCMD28 .AZM 48k ZCMD28 .AZM 40k
ZCMD29 .ASM 78k ZCMD29 .AZM 46k ZCMD29 .AZM 38k
==== ==== ====
406k 256k 200k
sysop note:
I think these figures speak for themselves. This was done
the system's hard drive which uses 2k blocks.
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Now here are my (PF) results on a typical dBASE II file:
Number of Compression
CP/M Records Time (min:sec)
Original 5472 ---
Huffman
SQUEEZEd 1470 8:22
Greenberg
CRUNCHed (1.2) 1054 6:16
Greenberg
CRUNCHed (2.0) 951 6:05
This test was done on my Xerox 820-II with dual 8" floppy drives.
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