*BSD News Article 77444


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From: mickey@cantina.clinet.fi (Mika Ruohotie)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: dual cpu stuff...
Date: 30 Aug 1996 18:05:29 +0300
Organization: Clinet, Espoo, Finland
Lines: 53
Message-ID: <506vvp$frv@cantina.clinet.fi>
References: <4vcsn4$7ql@cantina.clinet.fi> <4veq47$cc@anorak.coverform.lan> <MICHAELV.96Aug26001022@mindbender.serv.net>
NNTP-Posting-Host: cantina.clinet.fi

Michael L. VanLoon <michaelv@MindBender.serv.net> wrote:
>   Mika Ruohotie (mickey@cantina.clinet.fi) wrote:
>   : cpu's are "interlaced", right?
>"Interlaced"?  I don't think that's a word that has ever been applied
>to SMP...  ;-)

well, i lack the proper vocabulary being non native speaker... :p

>interface determines how long each CPU can burst on the bus before it
>has to get off and let the other CPU use it.  Consult

thanx, i feel much more enlighted now...

>http://www.Intel.com/ if you want more info.

will do when i have time.

>   : multiple cpus? i heard that the new nt4 will only hand max 40%
>Well then you heard wrong.  There is not one magical number that it

yes, i know it's not a single number one can hand out... but what i
heard was that nt4 is not performing too well with multiple cpus, that
it could do better too... like that something else runs the same things
better, and stuff...

>than NT on a dual, I have some motherboards I'd like to sell you.  Did
>you know "gullible" isn't in the dictionary?

names of those boards?

>Actually, FreeBSD's implementation is very inefficient.  It's very
>early alpha-quality code.  This isn't to put down the people working

this is something i realise too... but still i am going to find time
to download the code and see it myself... i assume, someone please correct
me, that 'make world' is again a good way to measure this?

>sharp people in that mix.  It's just that it takes time to get all the
>right pieces in place for a truly well-tuned SMP kernel, and FreeBSD
>is just getting started.

and when they're done... *smile*

>Well, of course it is...  What does that have to do with dual Pentium
>motherboards?

my original question was do i get more performance with 1024 cache when
i use two cpus, and i think i understand here it doesnt matter, meaning
the difference is same than if i'd have one cpu and put the same amount
of cache... right?


mickey