Hybrid Instruction Prefetch Based on Control Flow
Zhi Wang · Dianzi xuebao · 2003
Instruction supply can influence processor performance greatly.Instruction prefetching is an effective mechanism to reduce instruction cache miss rate.It proposes an instruction prefetching mechanism based on program control flow graph,while sequential prefetch and non sequential prefetch are both employed to fetch instructions in advance.Experimental results show it can increase instruction cache hit rate effectively.It predicts program behavior statically so that it does not need any complex hardware to predict and restore.