install numactl-devel, in order to use numa.h 1.rpm -ivh numactl-devel-2.0.13-4.ky10.x86_64.rpm compile 2.make start perf... 3.perf c2c record ./false_sharing.exe 2 start report... 4.perf c2c report -NN -g -c pid,iaddr --stdio Load Local HITM : 2010 【too High, false_sharing is detected】 Load Remote HITM : 1315 Load Remote HIT : 0 Load Local DRAM : 71 Load Remote DRAM : 1881 Load MESI State Exclusive : 1881 Load MESI State Shared : 71 Load LLC Misses : 3267 LLC Misses to Local DRAM : 2.2% LLC Misses to Remote DRAM : 57.6% LLC Misses to Remote cache (HIT) : 0.0% LLC Misses to Remote cache (HITM) : 40.3% compile no false_sharing code 7.gcc -g false_sharing_example.c -pthread -lnuma -DNO_FALSE_SHARING -o no_false_sharing.exe 8.perf c2c report -NN -g -c pid,iaddr --stdio Load Local HITM : 6【normal, false_sharing is erased】 Load Remote HITM : 486 Load Remote HIT : 0 Load Local DRAM : 1 Load Remote DRAM : 498 Load MESI State Exclusive : 498 Load MESI State Shared : 1 Load LLC Misses : 985 LLC Misses to Local DRAM : 0.1% LLC Misses to Remote DRAM : 50.6% LLC Misses to Remote cache (HIT) : 0.0% LLC Misses to Remote cache (HITM) : 49.3%