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Doubt reg MIPS Vs MHz

Started by Unknown January 6, 2006
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