Xref: utzoo comp.dcom.modems:5203 comp.unix.xenix:9876
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!ndcheg!ndmath!nstar!larry
From: larry@nstar.UUCP (Larry Snyder)
Newsgroups: comp.dcom.modems,comp.unix.xenix
Subject: Re: Trailblazer Plus & disappointing throughput...
Summary: transfers using PEP
Keywords: throughput
Message-ID: <511168@nstar.UUCP>
Date: 6 Feb 90 12:08:50 GMT
References: <1844@oneb.UUCP>
Organization: Northern Star Communications, Notre Dame, IN, USA
Lines: 19

> I am using a standard 8250-type UART, with no buffers (a'la 16550's)....
> would appreciate any suggestions which would assist me in tweaking the system
> and getting it up to speed....400-600 baud isn't acceptable, and I know that
> the system is capable of more.....where should I begin?

Make sure you are using UUCP spoofing in the modem, make sure the modem
interface is locked at 19200, make sure you are using hardware flow control
(if supported, if not use XON/XOFF but not BOTH), make sure your host is
batching large bundles (less overhead than lots of small bundles).  

Just a few ideas -

larry@nstar


-- 
          Larry Snyder, Northern Star Communications, Notre Dame, IN USA 
                uucp: larry@nstar -or- ...!iuvax!ndmath!nstar!larry
               4 inbound dialup high speed line public access system