The　cache　coherent　non-uniform　memory　access　(CC-NUMA)　multicore　architecture　becomes　more　and　more　popular　in　the　high-end　servers　and　data-center　applications.　However,　there　is　no　open　source　full-system　simulator　to　simulate　the　CC-NUMA　multicore　architecture;　which　makes　difficult　for　us　to　study　the　performance　of　the　CC-NUMA　multicore　architecture.　This　paper　presents　a　method　to　simulate　the　CC-NUMA　multicore　architecture　in　the　gem5　full　system　simulator,　then　analyzes　the　performance　of　multi-threaded　applications　in　CC-NUMA　multicore　processors.　Experimental　results　of　the　PARSEC　benchmark　suite　verify　the　aforementioned　method　and　show　that　the　CC-NUMA　multicore　architecture　can　achieve　good　performance　and　scalability　for　most　multithreaded　programs　that　we　tested　in　this　paper.