On the software side , compiler inserts prefetch instructions explicitly ; on the hardware side , an sma cache filter is added to cut down unnecessary prefetch . 4 guided by feedback - based optimization strategy , the paper presents a dynamic profile based continuous optimization framework - smarcof 4研究了基于動(dòng)態(tài)輪廓信息的軟硬件聯(lián)合持續(xù)優(yōu)化機(jī)制,并在dlx模擬器的基礎(chǔ)上設(shè)計(jì)并實(shí)現(xiàn)了一個(gè)完整的指令級(jí)模擬平臺(tái)和基于上述優(yōu)化規(guī)則的編譯框架smarcof 。