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. ------------------------------------------------------------- Msg#: 237 Date: 09/05/86 From: SYSOP (Gary Inman, West Los Angeles RCP/M) To: ALL Re: CRUNCH20 TEST FILES CRUNCH12 CRUNCH20 --------------------------------------------------------- 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. ------------------------------------------------------------ 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. ------------------------------------------------------------------