PROFILER DRIVEN DATA PREFETCHING OPTIMIZATION WHERE CODE GENERATION NOT PERFORMED FOR LOOPS

Data processing time is enhanced in a system in which memory prefetch instructions are inserted in the initially completed code as a result of a profiling operation during which the frequency of program hits are recorded using the recorded program hit data, and based upon the magnitude of the hits, the system recompiles the executable code and inserts therein additional prefetched instructions at strategy locations.