From: peterson@ZGNews.LoneStar.Org (Bob Peterson)
Newsgroups: comp.bbs.waffle,comp.dcom.modems
Subject: Re: poor transfer rates in Dos Waffle
Date: Fri, 02 Oct 92 18:04:58 CDT
Distribution: world
Organization: The Zeitgeist BBS, Plano, TX  214 596 3720

vds7789@aw2.fsl.ca.boeing.com (Vincent D. Skahan) writes:

> after upgrading to a Digicom Scout Plus modem
> (v42/v42.bis v32/v32.bis) I've gotten great
> transfer rates from Procomm...up to 1620 cps+
> with zmodem pulling files from a USR-DS.
> 
> However, I can't seem to get over 640 cps
> in Waffle via uucp when connected to a 
> WorldBlazer (on a Sun) or a Trailblazer
> (on a '386 Waffle). 

  What window size do the Sun and Waffle use?  My home box runs Waffle
1.65 on a 33MHz 386, the X00 FOSSIL locked at 38400, and a USR HST DS
with V.32bis.  I talk to my Sun (SunOS 4.1.1; ttya at 19200; Microcom
QX/V.32c) using V.32 and a window size of 7, and get log entries like
this

01-Oct-92  07:20 07:54  choctaw    |   54 sent 32340 rcvd  0 errs 1010 cps
02-Oct-92  06:46 08:30  choctaw    |  139 sent 99167 rcvd 18 errs 1010 cps

The above two entries are typical, and reflect transfers of a mix of
GIF files with an average size of roughly 100K and description files of
roughly 1K.  That is, 99% of the transfered data won't compress.  I
disable MNP5 and enable MNP4.

  I just started talking to another Waffle 1.65 running on a fast 386
under Desqview-386, X00 FOSSIL locked at 19,200 bps, 7 packet window,
transferring news packets, and see log entries like these.

27-Sep-92  19:40 19:44  bluecafe   | 4226 sent   38 rcvd  0 errs 1474 cps
02-Oct-92  04:09 04:13  bluecafe   | 5035 sent   38 rcvd  0 errs 1482 cps
02-Oct-92  17:12 17:13  bluecafe   | 1097 sent    9 rcvd  0 errs 1467 cps

  The window size seems critical at these speeds.  I've not played with
the (experimental) packet size parameter available in uucico for 1.65,
but that may also have a positive impact.

	...

> My dialers stuff is set up with the same modem
> init string that I'm using from Procomm...

  My init string in DIALERS says ATX3V1E1M0&n0S7=60DT\T, the static file
contains
	initialize      : ^\dATZ\dAT H0 M0 S0=1 V1 E1 X4
and the modem resets to the following on ATZ.
	ati5
	USRobotics Courier 14400 HST Dual Standard NRAM Settings...
	
	   DIAL=TONE   B0  F1  M0  X6
	   BAUD=38400  PARITY=N  WORDLEN=8
	
	   &A3  &B1  &G0  &H1  &I0  &K3  &L0  &M4  &N0
	   &P0  &R2  &S0  &T5  &X0  &Y1  %R0
	
	   S02=043  S03=013  S04=010  S05=008  S06=002
	   S07=055  S08=002  S09=006  S10=007  S11=050
	   S12=050  S13=000  S15=008  S19=010  S21=010
	   S22=017  S23=019  S24=150  S26=001  S27=000
	   S28=008  S29=020  S32=001  S33=000  S34=000
	   S35=000  S36=000  S37=000  S38=000


> any help would be appreciated...

  I suggest you find out what window size uucp
g uses, and see if you can adjust up to 7.  Check the serial port rate
on the Sun and make sure it is locked at something above 9600.  Make
sure your connections really are made using V.32bis.

  I hope the above helps.

>    ---------   Vince Skahan   -----------   vince@atc.boeing.com   --------- 

    Bob

Bob Peterson          Waffle BBS: peterson@ZGNews.LoneStar.Org
P.O. Box 865132       Internet: peterson@csc.ti.com  TelCo: 214 995-6080 days
Plano, Tx 75086-5132  BBS: 214 596-3720 @1200, 2400, 9600-14400 (HST & V.32bis)