From: plfriko@yahoo.de   
      
   Hi,   
      
   I've a question about the influence of compiler optimizations that   
   reorder functions on the system performance.   
      
   Assume a modern processor with all state-of-the art features like   
   prefetching, branch prediction and a superscalar pipeline. Further   
   assume that all caches are disabled. Will the program runtime change   
   when just the order of functions is changed (without any other code   
   transformation)?   
      
   I'm of the opinion that a reordering of function should have little   
   influence on the program execution, maybe due to some prefetch effects   
   but thes should be marginal.  Of course, with caches this situation   
   would look different.   
      
   How do you see that?   
      
   Regards,   
   Tim   
      
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