Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!bellcore!texbell!sugar!ficc!peter
From: peter@ficc.uu.net (Peter da Silva)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: interrupt-driven vs. polled I/O performance
Message-ID: <3984@ficc.uu.net>
Date: 26 Apr 89 13:22:15 GMT
References: <421@logicon.arpa> <164@mirsa.inria.fr>
Organization: Xenix Support
Lines: 18

In article <164@mirsa.inria.fr>, huitema@mirsa.inria.fr (Christian Huitema) writes:
[ vi, emacs, etc... do echoing at the user level ]

> Thus, I have some doubts that
> one should aim at interrupt time echoing just for the sake of optimizing
> ``ed'' and ``bin/sh'' if user level echoing is felt acceptable otherwise...

You have obviously been blessed with an abundance of CPU time. There have been
times I've dropped out of 'vi' to 'ex' because the echo delay for 'vi' was so
long I couldn't stand it.

Yes, a real-time kernel would be an improvement... but failing that interrupt-
time echoing has its place.
-- 
Peter da Silva, Xenix Support, Ferranti International Controls Corporation.

Business: uunet.uu.net!ficc!peter, peter@ficc.uu.net, +1 713 274 5180.
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