Doubt reg MIPS Vs MHz

Jon Harris wrote:
> 
> In many (most?) processors that are considered DSPs, every (or almost every)
> instruction takes 1 clock cycle.  So in this case MIPS = MHz.

Ah, but many (most?) DSPs can execute more than one instruction per
clock cycle, so MIPS > MHz. Exactly how many MIPS you get depends on
how efficiently your code can be distributed over the available
execution units. The spread between "peak" MIPS, "typical" MIPS and
"worst case" MIPS can easily be an order of magnitude.

Cheers

mark-r

-- 
"Let's meet the panel. You couldn't ask for four finer comedians -
so that answers your next question..."
 -- Humphrey Lyttleton

newsgroup is place to Q&A when someone has something not to understand.
I think you never understand why newsgroup exists.
Don't enter newsgroup If you do not want to see such idiot question.
Make human first before you get technology

tommy wrote:

> newsgroup is place to Q&A when someone has something not to understand.
> I think you never understand why newsgroup exists.
> Don't enter newsgroup If you do not want to see such idiot question.
> Make human first before you get technology

A troglodyte came to you and asked how to build the Babel tower to reach 
the Moon. Do you think he will be able to understand the pathetic 
attempts to explain the gravitation, orbits, space velocities, etc?

Kick the caveman's ass and make him run back into his cave. May be this 
kick will make him study instead of looking for quick answers for the 
stupid questions.

Even the DSP abc-books and www sites for idiots contain enough 
information not to ask what is a complex number, how to do the division 
or what is MIPS per MHz.

VLV

Vladimir Vassilevsky wrote:
> tommy wrote:
>
> > newsgroup is place to Q&A when someone has something not to understand.
> > I think you never understand why newsgroup exists.
> > Don't enter newsgroup If you do not want to see such idiot question.
> > Make human first before you get technology
>
> A troglodyte came to you and asked how to build the Babel tower to reach
> the Moon. Do you think he will be able to understand the pathetic
> attempts to explain the gravitation, orbits, space velocities, etc?

One of my most severe shortcommings is that I can not read other
people's minds. When somebody ask me a question, I try to answer
it as best I can. It usually starts some sort of dialog that indicates
to me how the "troglodyte" is prepared for asking the question.

There have been times the question was caused by the other party
not being aware that there may have been a problem. Other times,
the other party was aware of the problem but did not know where
to look for ways to handle it.

And of course, there have been cases where one wonders whether
anything at all goes on inside the other party's mind. Not many,
though.
I have seen maybe one or two of those cases during my lifetime.

There is a vast difference between "layman" or "not sufficiently
prepared/educated" on one hand, and "moron" or "idiot" on the other.

> Kick the caveman's ass and make him run back into his cave. May be this
> kick will make him study instead of looking for quick answers for the
> stupid questions.

That's one way of doing it. People who like that method for educating
others, may want to consider soccer for a hobby.  Or joining the
army as drill seargeants.

> Even the DSP abc-books and www sites for idiots contain enough
> information not to ask what is a complex number, how to do the division
> or what is MIPS per MHz.

This is all out bullshit.

People have different levels of preparation for taking up DSP.
Developing knowledge takes a concious effort. Asking questions is
part of that effort. Everybody have asked those kinds of question
at one time or another, even you. No one are omniscient. Those who
think they are, are the ones that end up like the cavemen you despise:
They have all their world visible around themselves, within easy reach.

They see that cave opening as a troublesome anomaly in an otherwise
stable, static world. And they miss out on the rest of the world
outside 
their cave. 

Rune