The　＇Memory　Wall＇　problem　has　become　a　bottleneck　for　the　performance　of　processor,　and　on-chip　multiprocessor(CMP)　aggravates　the　memory　access　latency.　So　many　hardware　prefetching　techniques　have　been　brought　to　solve　this　challenge,　i.e.　Future　Execution.　This　paper　introduces　runahead　execution(another　hardware　prefetching　technique　firstly　used　on　single-core　processor)　and　Future　Execution,　then　it　brings　up　some　improvement　for　Future　Execution　and　gives　the　result　and　analysis　of　data　tested　by　SPEC2000　benchmark.　©　(2012)　Trans　Tech　Publications.