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From: philf@xymox.metaphor.com (Phil Fernandez)
Newsgroups: comp.arch
Subject: Re: GOTO considered essential??
Message-ID: <863@metaphor.Metaphor.COM>
Date: 28 Oct 89 03:34:12 GMT
References: <1989Oct27.050923.5294@ico.isc.com>
Sender: news@metaphor.Metaphor.COM
Reply-To: philf@xymox.metaphor.com (Phil Fernandez)
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Organization: Metaphor Computer Systems, Mountain View, CA
Lines: 25

In article <1989Oct27.050923.5294@ico.isc.com> rcd@ico.isc.com (Dick Dunn) writes:
>... The
>processor may be able to issue 5 instructions in some ideal cycle, but it
>does NOT run at 5 instructions/cycle for any believable piece of code!
 
At an all-day IBM briefing last August on the new machine
architecture, the IBM folks tole me over and over, "5
instructions/cycle".  As this went on, I became increasingly skeptical
and inquisitive, and finally pushed the issue.  In the end, IBM
admitted that in real-world situations, they saw more like 1.0-1.2
instructions/cycle. 5i/c is just a theoretical maximum.  Don't believe
the hype, boys and girls...

pmf

(This opinions are mine only, and do not reflect the opinions of Metaphor)



+-----------------------------+----------------------------------------------+
| Phil Fernandez              |             philf@metaphor.com               |
|                             |     ...!{apple|decwrl}!metaphor!philf        |
| Metaphor Computer Systems   |"Does the body rule the mind, or does the mind|
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