Difference between revisions of "CSC103: DT's Notes 1"

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That's one aspect of the Von Neumann bottleneck.  Using our previous metaphor of the cookie monster, it is akin to having our cookie monster walking on a treadmill where cookies are dropped in front of him at regular intervals, and the cookie monster is becoming faster and faster at walking the treadmill and eating cookies, but the treadmill, while increasing in speed as well, is not able to keep up with the cookie monster.
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That's '''one of the limiting aspects''' of the Von Neumann bottleneck.  Using our previous metaphor of the cookie monster, it is akin to having our cookie monster walking on a treadmill where cookies are dropped in front of him at regular intervals, and the cookie monster is becoming faster and faster at walking the treadmill and eating cookies, but the treadmill, while increasing in speed as well, is not able to keep up with the cookie monster.
  
 
The '''second limiting problem'''  of the Von Neumann bottleneck is in the way the processor in a computer is the '''center of activities''' for everything.  Everything has to go through it.  Instructions, data, everything that is in memory is '''for''' the processor.  The processor is going to have to access it, read it, modify it at least once during their time in memory.  And sometimes multiple times.  So  
 
The '''second limiting problem'''  of the Von Neumann bottleneck is in the way the processor in a computer is the '''center of activities''' for everything.  Everything has to go through it.  Instructions, data, everything that is in memory is '''for''' the processor.  The processor is going to have to access it, read it, modify it at least once during their time in memory.  And sometimes multiple times.  So  

Revision as of 07:23, 1 October 2013

--© D. Thiebaut 08:10, 30 January 2012 (EST)



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