Xref: utzoo comp.unix.xenix:1988 comp.unix.microport:497
Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!ll-xn!mit-eddie!uw-beaver!tektronix!reed!omen!caf
From: caf@omen.UUCP (Chuck Forsberg WA7KGX)
Newsgroups: comp.unix.xenix,comp.unix.microport
Subject: Re: Do we need a serial I/O benchmark (BAUDSTONE)?
Message-ID: <661@omen.UUCP>
Date: 14 Apr 88 18:25:26 GMT
References: <1974@ubc-cs.UUCP>
Reply-To: caf@omen.UUCP (Chuck Forsberg WA7KGX)
Organization: Omen Technology Inc, Portland Oregon
Lines: 17
Keywords: rs232 serial data communications benchmark

In article <1974@ubc-cs.UUCP> pajari@grads.cs.ubc.ca (George Pajari) writes:

A loopback configuration is next to useless for predicting the
ability of a system to receive data at speed from external
sources (other computers).

The limiting factor is often the ability of the system to
accept data at the interrupt level.  Such congestion tends to
delay transmission of the next few characters so a loopback
test will pass all characters but a real world application
will encounter missing data.


Chuck Forsberg WA7KGX          ...!tektronix!reed!omen!caf 
Author of YMODEM, ZMODEM, Professional-YAM, ZCOMM, and DSZ
  Omen Technology Inc    "The High Reliability Software"
17505-V NW Sauvie IS RD   Portland OR 97231   503-621-3406
TeleGodzilla BBS: 621-3746   CIS: 70007,2304    Genie: CAF