An idea for improving NeXT performance

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2 total messages Started by serge Fri, 22 Jan 1993 19:06

#1696

Author: serge
Date: Fri, 22 Jan 1993 19:06

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Rather than coming out with a marginally superior 40-MHZ nextstation, I think  
NeXT should look into packing two 68040's into one next, with the second cpu  
doing nothing but running DPS.  Think about it --- a whole processor just to  
run the window server!  And it's probaby not that hard, at least at a software  
level, since you have to go through the kernel (mach ports) to get to the  
window server, n'est-ce pas?.  A small kernel mod to cause a cpu switch when  
delivering a mach message, and you're off to the races!  And once you've got  
that working, you've got the elements needed to build a NeXTTerminal.

Serge J. Goldstein

Re: An idea for improving NeXT performance

#1723

Author: Ian Jefferson
Date: Sun, 24 Jan 1993 18:03

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Yes Yes! but make it more general Purpose than that.  I think that thread
level or even process level multiprocessing is usefull on a desktop
machine.  

I have limited understanding of multiprocessing but I beleive that this
kind of strategy was employed by Apollo on the DN10000 some years ago. 
In that case the compiler could split tasks off on a procedure by
procedure basis.  The OS scheduler would then assign these light weight
tasks on a who-is-least-loaded sort of way.

There must be some folks out there with further insight on
multiprocessing on a NeXT.  Isn't mach supposed to do this sort of
thread level MP?  Comments?



-- 
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Ian Jefferson 	ijeff@ccs.carleton.ca No NeXT mail please!
		ijeff@computeractive.on.ca NeXT mail please!

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