On May 18, 2013, at 1:28 PM, Cory Smelosky wrote:
On Sat, 18 May 2013, G. wrote:
...
If you use the CTERM protocol, it will be always slow and sluggish, no matter
how much you'll try to tweak it. Try SET HOST /APP=R and appreciate speed :)
It's MUCH more usable when using RTERM. Thank you.
Why is CTERM so slow on TOPS-10?
Because CTERM was designed, in essence, as a remote procedure call representation of the
VMS terminal driver features. The ones in TOPS-10 are entirely different -- just
consider the way carriage return echoes. So TOPS-10 is forced to do its terminal I/O
through a protocol that doesn't come close to matching what it really wants to see.
I suspect it simply runs things in single character mode, since that's about the only
way to guarantee that you get what you want.
Come to think of it, TOPS-10 RTERM mode may well be just that, but it's a very
lightweight protocol so it's fast. It also has the nice benefit that it exists on
systems that don't do CTERM -- like RSTS.
paul