A method for optimizing (re-structuring) data layout for 1) local or global variables and/or 2) fields of a structure or object and/or 3) function pointers in a virtual function table in a compiled program is based on profile feedback. A user, such as a software programmer, identifies one or more classes of data elements in an application that the user wishes to optimize. A method, which may be implemented in a software program such as a compiler, analyzes the profile for the designated data elements to determine, based on the application's temporal behavior, how to order the designated data elements in order to optimize data cache performance.

 
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