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Subject: Re: bytes per second?

Author: Robert Hyatt

Date: 17:53:05 10/05/98

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On October 05, 1998 at 17:05:38, John Coffey wrote:

>Do we know how many bytes pers second a PC can copy?   I realize this depends
>upon the cache.  For the momemnt, let us assume that it is going to hit the
>same areas (no more than 16K) of memory often.
>
>John Coffey


at a bus speed of 100mhz, you get 800M bytes per second, absolute theoretical
max.  In reality, it is about 1/4 of this or so, or 200M bytes per second.  But
note at that speed, you are doing *nothing* else, just pumping data thru the
cpu...  and since copies are a read/write pair, even getting 200M bytes per
second is difficult...

And a second issue is that this will blow hell out of cache while you are
doing it, naturally... :)



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