[HECnet] DECnet performance problems (on TOPS-10)

Paul_Koning at Dell.com Paul_Koning at Dell.com
Thu Sep 1 16:17:40 PDT 2011


TOPS-10 and RSTS (and RT-11) echo the keystrokes as they occur, while RSX and VMS echo when the read occurs.   Also, RSX, if I remember right, echoes <ret> as carriage return, and the line feed occurs at the start of the next input, while RSTS echoes <ret> as CRLF.

I think TOPS-20 is like TOPS-10/RSTS, but it's handled differently in Rterm.   The reason is that TOPS-20 does a lot with command completion, so its Rterm mode is essentially single character mode (what Telnet would call "raw").   RSTS/TOPS-10 mode gathers a whole line locally then sends that over (unless you're in a screen editor or other application that turns on character at a time mode -- which RSTS calls "ODT mode" because of the debugger that uses it).

	paul 

-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Bob Armstrong
Sent: Thursday, September 01, 2011 11:03 AM
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECnet performance problems (on TOPS-10)

but echoes TOPS-10 style (which is also RSTS style) not VMS/RSX style.   

  Ok, I'll bite - what's the difference in echo style between TOPS10/RSTS and VMS/RSX?   And which category does TOPS20 belong to?

Bob



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