In article ,   
   Schlomo Goldberg   wrote:   
   >albert@spenarnc.xs4all.nl writes:   
   >   
   >> In article ,   
   >> David Schultz   wrote:   
   >>>Main memory (DRAM of some type) is the new hard disk.   
   >>>   
   >>>The difference in speed between cache and main memory looks a lot like   
   >>>the difference between main memory and hard disk did a few decades ago.   
   >>>So if you thrash the backing store, operation will slow down.   
   >>>   
   >>>   
   >>>Potentially complicating things are an OS. Is this Forth running bare   
   >>>metal on the AMD with no OS? If there is an OS then all sorts of memory   
   >>>management issues appear.   
   >>>   
   >>>If you need more memory space than you have physical memory, it will   
   >>>seem as if your backing store is a tape drive. :-)   
   >>   
   >> Everybody knows that, including myself.   
   >>   
   >> Haven't you read the original post?   
   >> I'm not using half of the ram present.   
   >   
   Others have cleared up that despite using half of the ram present   
   the "unused" memory is what matters most.   
      
   >You still don't know what kind of memory management strategy your OS is   
   >using.   
      
   In practice I care most for experiments. It is hard to conclude   
   from knowledge of strategy what your programs will do.   
      
   Groetjes Albert   
      
   >   
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