Path: utzoo!attcan!uunet!samsung!usc!wuarchive!bcm!lib!thesis1.hsch.utexas.edu From: jmaynard@thesis1.hsch.utexas.edu (Jay Maynard) Newsgroups: comp.sys.ncr Subject: Re: Does uucp have to be slow? Message-ID: <4230@lib.tmc.edu> Date: 24 Oct 90 15:52:57 GMT References: <4221@lib.tmc.edu> <110@raysnec.UUCP> Sender: usenet@lib.tmc.edu Organization: University of Texas Medical School at Houston Lines: 30 Nntp-Posting-Host: thesis1.hsch.utexas.edu An update: Craig McBride (where's rmit.oz.au, anyway? :-) suggested that I try using the other processor port, /dev/ttya, as it would handle faster speeds. That That didn't work, unfortunately...I got the same results. I then installed the HDB upgrade to the Tower, so both systems are now running HDB UUCP. That didn't fix it either. Finally, in an attempt to nail down some more info, I launched Uutry on the AT with -x9 specified instead of the default -x5. The test was at 2400 BPS, talking to /dev/ttya on the Tower. -x5 failed within a few seconds with the 'alarm 1' message...but -x9 ran for quite a while before stopping. I could see on a breakout box inserted in the line that there was a slight pause between transmitted packets. I restarted it and drove off to work; I don't know what I'll find when I get home. This result leads me to believe that the problem is a character overrun on the Tower. I have patched the Microport system for a ulimit of 16 MB, though I don't know what the default ulimit on the Tower is. The transfer is failing well before a megabyte has been sent, though. The 30 MB is in a number of files, but only one is over a meg (it's about 5 meg). Anyone have any more ideas? I've run the AT successfully for a couple of years doing fairly heavy UUCP at 2400, so I don't suspect it. I hope I don't get stuck slowing the links down to 1200... -- Jay Maynard, EMT-P, K5ZC, PP-ASEL | Never ascribe to malice that which can jmaynard@thesis1.hsch.utexas.edu | adequately be explained by stupidity. "With design like this, who needs bugs?" - Boyd Roberts