1[ 2 { 3 "BriefDescription": "Machine clears due to memory ordering issue", 4 "CollectPEBSRecord": "1", 5 "Counter": "0,1,2,3", 6 "EventCode": "0xC3", 7 "EventName": "MACHINE_CLEARS.MEMORY_ORDERING", 8 "PDIR_COUNTER": "na", 9 "PEBScounters": "0,1,2,3", 10 "PublicDescription": "Counts machine clears due to memory ordering issues. This occurs when a snoop request happens and the machine is uncertain if memory ordering will be preserved - as another core is in the process of modifying the data.", 11 "SampleAfterValue": "20003", 12 "UMask": "0x2" 13 }, 14 { 15 "BriefDescription": "Load uops that split a page (Precise event capable)", 16 "CollectPEBSRecord": "2", 17 "Counter": "0,1,2,3", 18 "EventCode": "0x13", 19 "EventName": "MISALIGN_MEM_REF.LOAD_PAGE_SPLIT", 20 "PEBS": "2", 21 "PEBScounters": "0,1,2,3", 22 "PublicDescription": "Counts when a memory load of a uop spans a page boundary (a split) is retired.", 23 "SampleAfterValue": "200003", 24 "UMask": "0x2" 25 }, 26 { 27 "BriefDescription": "Store uops that split a page (Precise event capable)", 28 "CollectPEBSRecord": "2", 29 "Counter": "0,1,2,3", 30 "EventCode": "0x13", 31 "EventName": "MISALIGN_MEM_REF.STORE_PAGE_SPLIT", 32 "PEBS": "2", 33 "PEBScounters": "0,1,2,3", 34 "PublicDescription": "Counts when a memory store of a uop spans a page boundary (a split) is retired.", 35 "SampleAfterValue": "200003", 36 "UMask": "0x4" 37 } 38] 39