October 19, 2000 Jeff Fink asked me to do some download statistics on ground.ecn.uiowa.edu. This report summarizes _only_ FTP downloads (not http access). I have run some summary stats for file downloads from ground 1996-2000. This turned into a challenge which I couldn't resist conquering. I have created a Top100 list (actually top 107 since I'm using all files downloaded 300 or more times). Some stats are a little misleading since a multipart file (ie some binscii files) is counted once for each part. The Top100 file is available on ground in the main apple2 directory. It is also posted as a separate message on csa2. Challenges: FTP log files 1996 6,254,776 bytes 83506 records 1997 35,007,752 bytes 442134 records 1998 56,929,482 bytes 688684 records 1999 39,239,234 bytes 456728 records 2000 76,906,213 bytes 859367 records Processing time with SAS 6.12 on HP B132L workstation: 36 minutes I eliminated 'duplicates' (file downloaded more than once on a given machineID) and a few files (name <4 chars (files in the lost+found)) or any of the 'FILE.LIST' files. Top 107 list of file downloads from ground Feb 1996 - Sep 2000 Ground Usage - FTP downloads Filename 1996 1997 1998 1999 2000 Total index.html 12 176 138 94 199 619 aboutdivdos.txt . 190 139 85 145 559 ARCHIVE.SUFFIX.INFO.txt . 170 177 88 116 551 spyhunter.1of3 17 208 141 91 94 551 ... Lambda.txt 21 102 68 43 67 301 ProTYPE11.hqx . 69 71 65 96 301 text.adventures 49 60 64 51 76 300 Total downloads 72830 381949 478553 406191 740070 2079593 Total filenames = 32978 As you can see from the Top100 file, over 2 million file downloads have occurred in the past 5 years. In the first 9 months of this year over 740 thousand downloads have occurred. We may reach 1 million downloads for the year 2000 by the end of December. (That is on average over 2700 files/day!) A complete list of the 32978 files in the summary is 600 pages, single spaced. (Only 2,785,445 bytes.) Determining the number of users who have downloaded files from the ground archives is nearly impossible. The FTP logs contain 'machine id' instead of userid or login names. There are over 27000 unique machine IDs. But many of these represent (bogus) generated IDs. There are thousands of IDs that begin with [cisco,cvx,dial,du,host,ip,kmm,pm,port,ppp,proxy,oct, remote,rock,slip,sf,tc,tp,ts,user] to name a few. AOL represents another situation because most aol users are identified as xxxxxxxx.ipt.aol.com (where xxxxxxxx is a RANDOM alphanumeric string not attached to a particular user). So instead of users, I tried to identify 'sites' by stripping off the leading level of each machid (ie all chars up to and including the first '.', except when the machid was a IP number (www.xxx.yyy.zzz). Thus all AOL users were reduced to one site. Same for ppp logins from particular service provider, etc. This reduced the unique 'sites' to 13560. Still, 4265 'sites' had downloaded only one file. So only 9295 sites have downloaded more than one file. 4382 sites have only downloaded between 2 and 5 files, thus 4913 sites have downloaded 6 of more files. 3584 sites have downloaded 10 of more files. 61 sites have downloaded over 10,000 files apiece. 25 sites have downloaded over 20,000 files. Given that some 'sites' represent more than 1 user, and assuming only those 'sites' with 6 or more downloads represent an active apple2 user, I estimate the number of apple2 users who have actively used ground.ecn.uiowa.edu to be over 5000 from all over the world. A complete list of the 13560 sites in the summary is 247 pages, single spaced. (Only 1,145,520 bytes.) The top100 list would include sites which have downloaded 5340 or more files. I would consider most of sites as private mirrors of (parts of) ground.ecn Site Rank 1996 1997 1998 1999 2000 Total ex-pressnet.com 1 . . . 21513 13878 35391 dialnet.net 2 23 30416 4373 . . 34812 omah.uswest.net 3 . . . 193 33411 33604 ... idx.com.au 99 . 5411 . 1 . 5412 deltasoft.com 100 . . 5340 . . 5340 ... ==== ==== ==== ==== ==== ==== N = 13560 72830 381949 478553 406191 740088 2079611 I believe these statistics demonstrate that ground.ecn.uiowa.edu continues to be one of the premier apple2 sites for a world-wide group of users. Thank you to Jeff Fink (author of Silvern Castle adventure game) for nudging me into this project. And a special thank you to apple2 users world-side for supporting ground.ecn.uiowa.edu --Steve
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