🚀 go-pugleaf

In article <15770@mimsy.UUCP> folta@tove.umd.edu.UUCP (Wayne Folta) writes:
>
>"For some reason, whenever I run Red Ryder off my hard disk, at 2400
>"baud, the effective terminal speed is about 1200 baud, and xmodem
>"downloads take about 20-25 seconds per 1 Kbyte of data.  This has
(Several lines deleted.)
>"Andrew Kwan

>I just ran a test of RR 10.3 and it worked well at 2400 baud (actually,
>220 cps throughput to the screen).  I cannot remember if it was Navigator
(Several lines deleted.)
>Wayne Folta  (folta@tove.umd.edu  128.8.128.42)

Red Ryder 10.3 has a well-known problem of performing extremely poorly during
X-modem downloading.  (RR 9.4 was a reasonable performer!)  Unless one is
running an INIT-less System on a Mac Plus, there is a considerable pause
during the time that RR is doing the CRC check after receiving a packet.  This
slows down transmission efficiency remarkably.  Surprisingly, using the same
System but running RR under MultiFinder actually speeds up the download.

This problem has been discussed at length on the FreeSoft Roundtable of GEnie,
where RR "support" is provided.  The moderator of that Roundtable has
difficulty accepting the existence of this problem, but then again he is
running a Mac II.  Scott Watson, RR's programmer, is well-aware of the
download speed problem, but has seemingly ignored it while working on other
software projects.

A solution that I have found for the problem is to _not_ use RR's X-modem for
downloading.  Rather, while still in RR, invoke the BackDown DA and use it to
perform your X-modem download. You will note a _remarkable_ speed
improvement.

Jim

-- 

Jim Macak  <lakesys!macak@csd1.milw.wisc.edu>