Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!agate!e260-1g.berkeley.edu!c60b-1eq From: c60b-1eq@e260-1g.berkeley.edu (Noam Mendelson) Newsgroups: comp.compression Subject: Re: ARJ 2.0 Summary: Baaaad big-mama compression Keywords: arj Message-ID: <1991Apr20.040605.7058@agate.berkeley.edu> Date: 20 Apr 91 04:06:05 GMT References: <1991Apr19.200436.14936@en.ecn.purdue.edu> Sender: root@agate.berkeley.edu (Charlie Root) Organization: University of California, Berkeley Lines: 37 In article <1991Apr19.200436.14936@en.ecn.purdue.edu> chuangss@en.ecn.purdue.edu (Shyne Song Chuang) writes: >Hi there, >Just wanted to let you guys know that there's a new version of ARJ that's >out. Version 2 is *supposed* to compress as well as LHA 2.1x (gives perhaps >the best compression around) AND is supposed to compress as fast as PKZIP! >If any of you know an ftp site where it can be found, please mention it. >I got my copy of ARJ 2.0 from Delphi. >As usual, I haven't had time to test ARJ, so correct me if I'm wrong... But >that's what I read in the .doc file. ARJ 2.00 is available on simtel under pd1:arj200.exe. I ran some crude tests using 11 binary files and 11 text files. Here are my results. All times in seconds of course ;-) Binary data - 11 misc. EXE files (358,783 bytes). Compression time Compressed size Decompression time LHa 2.12 1:44.89 244,226 42.74 ARJ 2.00 1:27.74 243,498 44.50 PKZIP 1.1 1:00.05 251,433 22.25 Text data - 11 misc straight ASCII files (247,669 bytes). Compression time Compressed size Decompression time LHa 2.12 1:15.98 88,193 24.12 ARJ 2.00 1:00.54 85,859 26.37 PKZIP 1.1 48.84 92,057 17.91 Considering ARJ 1.10 sucked (flames >/dev/null), this is a tremendous improvement. Phil Katz is the only one that hasn't released a new version of ZIP, but I'm sure that's in the works. -- +==========================================================================+ | Noam Mendelson ..!ucbvax!web!c60b-1eq | "I haven't lost my mind, | | c60b-1eq@web.Berkeley.EDU | it's backed up on tape | | University of California at Berkeley | somewhere." |