Relates :
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I see about 3% improvement of jbb2005 score on Core2Duo with -XX:AllocatePrefetchLines=3 vs -XX:AllocatePrefetchLines=1 (default). The time spent in arraycopy dropped from 96 sec to 26 sec: -XX:AllocatePrefetchLines=1 : 96.508 100.00 96.508 4.67 96.508 4.67 *arrayof_jshort_disjoint_arraycopy -XX:AllocatePrefetchLines=3 : 25.868 100.00 25.868 1.25 25.868 1.25 *arrayof_jshort_disjoint_arraycopy
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