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Date:      Sun, 2 Feb 1997 20:20:55 +0200 (EET)
From:      Narvi <narvi@haldjas.folklore.ee>
To:        Terry Lambert <terry@lambert.org>
Cc:        gurney_j@resnet.uoregon.edu, hackers@freefall.freebsd.org
Subject:   Re: performance puzzler
Message-ID:  <Pine.BSF.3.95.970202201858.13473A-100000@haldjas.folklore.ee>
In-Reply-To: <199702012151.OAA06709@phaeton.artisoft.com>

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On Sat, 1 Feb 1997, Terry Lambert wrote:

> > > Your bus on the 120 is 3MHz slower than the bus on the 66.  What you
> > > are doing is not I/O bound, it is CPU bound.
> > 
> > umm... this usually isn't true...  most of the non 33mhz bus speeds (for
> > 486 based chips) are actually 40 mhz or 50mhz...  the amd-486/120dx4 is
> > actually a 40mhz bus multiplied by 3...  it's kinda like the Intel
> > 486/100dx4...  the chip is actually 3x bus speed (33mhz)...
> 
> Memory bus, or I/O bus?
> 
> The PCI and EISA standards specify 33MHz as their top end.
> 

Where did I read about 66Mhz revision/mode for PCI? Was it in a dream or
just a "not supported by anybody yet" possibility as is the 64bit card
width. Or was it all just a dream or erroneus news article?

	Sander

> 
> 
> 					Terry Lambert
> 					terry@lambert.org
> ---
> Any opinions in this posting are my own and not those of my present
> or previous employers.
> 




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