From owner-freebsd-hackers  Fri May 17 07:03:08 1996
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Date: Thu, 16 May 1996 15:16:48 +0300 (EET DST)
From: Narvi <narvi@haldjas.folklore.ee>
To: "Serge A. Babkin" <babkin@hq.icb.chel.su>
cc: hackers@freebsd.org
Subject: Re: EDO & Memory latency
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On Thu, 16 May 1996, Serge A. Babkin wrote:

> > 
> > 
> > On Thu, 16 May 1996, Serge A. Babkin wrote:
> > 
> > > I have just tried lmbench and the numbers it gives are looking
> > > slightly strange for me. It shows memory latency upto 500ns while
> > > I have 60-ns EDO memory in a Pentium/75 box. Okay, its external
> > > clock is 25MHz, this gives 40ns, one wait state, it gives another 40ns,
> > > it gives 80ns, but why the overhead is over 400ns ? 
> > 
> > The external bus of the Pentium 75 should be 50Mhz. It is 1.5x50, not
> 
> You're right, I was wrong. So, the guestion gets yet more interesting :-)
> 
> > 3x25. 60ns EDO sounds like an overkill for a Pentium 75 though...
> > I would use a quicker processor and (120) with ordinary memory 
> > (fast-page, 70ns) - but the likes may vary. 
> 
> I just got them for the same price as ordinary memory and of course
> I choosed EDO. It costed me $125 per 8M SIMM.

What? $125 for 8M 60ns EDO? I hope I lived where you do... :-( It also 
invalidates my claim whetever or not use the memory on a Pentium 75... 

> 
> -SB
> 


	Sander

.sigless on the moment