In　multi-core　systems,　hardware　prefetchers　aggravate　the　preemption　of　some　access-intensive　programs　for　shared　last　level　cache　(LLC)　resources,　resulting　in　lower　system　performance.　As　a　solution,　we　propose　a　prefetch-aware　multi-core　shared　cache　partition　(PACP)　strategy　to　tackle　the　conundrum.　According　to　the　performance　changes　of　programs　after　prefetch　is　enabled,　each　program　is　classified　as　either　prefetch-sensitive　or　non-prefetch-sensitive,　and　then　cache　resources　are　dynamically　allocated　according　to　the　cache　utilization　and　memory　bandwidth　changes　of　programs　on　the　core.　ChampSim　is　used　to　simulate　the　strategy.　Experimental　results　show　that　the　performance　of　4-core　and　16-core　systems　can　be　improved　by　17.54%　and　12.76%　on　average,　respectively.　PACP　effectively　balances　the　size　of　cache　space　between　different　cores　and　reduce　interference,　thus　improving　system　performance.　©　2022　ACM.