Faster Downloads
09-Jun-87 00:15:01
Sb: #71190-Faster Downloads
Fm: Don Curtis/SYSOP 76703,4321
To: Steven Fisher 73157,572
Steve,
NO!! You only need 1 ^F to speed things up. Not only does multiple
^F's have a tendency to cause CIS to quit the download, it will cause it to
continue to send blocks for quite a while if you have a failed download causing
strange things to occur on the screen.
The terminal program sends a ^F for each good block, by you adding 1 to
the line (and 1 only) it is already "waiting" at the sending terminal's input
so it starts the next block very quickly. During the next block send, the
"real" ^F from you program arrives and it is now waiting at the sending
terminal's input.
Packet switched networks are by their very nature, not optimized for
protocol transfers such as Xmodem…so doing a normal Xmodem transfer at 1200
baud actually works out to about 600-700 bps (baud). Doing a turbo transfer
works out to be about 1180 bps…which is the same rate you'd get if you were
connected to a local BBS at 1200 bps where there is no packet switched network
in the middle.
Don