Newsgroups: comp.protocols.tcp-ip
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: Super Cheap IP router (< $1000)
Message-ID: <1989Apr14.185654.1141@utzoo.uucp>
Organization: U of Toronto Zoology
References: <8904140206.AA10084@ucbvax.Berkeley.EDU>
Date: Fri, 14 Apr 89 18:56:54 GMT

In article <8904140206.AA10084@ucbvax.Berkeley.EDU> dcrocker@AHWAHNEE.STANFORD.EDU (Dave Crocker) writes:
>Henry Spencer asserts that interrupts need not hurt performance, if software
>is written properly, primarily through the use of low-level modules to do
>the real-time servicing, deferring the rest of the processing for upper-level
>software...

Well, that's the scheme I outlined, but the conclusion is overstated.  I
didn't say that interrupts were free, I said that they could be made a
good deal less expensive than people tend to think.  Obviously there is
always a point where the cost gets too high.
-- 
Welcome to Mars!  Your         |     Henry Spencer at U of Toronto Zoology
passport and visa, comrade?    | uunet!attcan!utzoo!henry henry@zoo.toronto.edu