[ { "CollectPEBSRecord": "1", "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.", "EventCode": "0xC3", "Counter": "0,1,2,3", "UMask": "0x2", "EventName": "MACHINE_CLEARS.MEMORY_ORDERING", "SampleAfterValue": "200003", "BriefDescription": "Machine clears due to memory ordering issue" }, { "PEBS": "2", "CollectPEBSRecord": "2", "PublicDescription": "Counts when a memory load of a uop spans a page boundary (a split) is retired.", "EventCode": "0x13", "Counter": "0,1,2,3", "UMask": "0x2", "EventName": "MISALIGN_MEM_REF.LOAD_PAGE_SPLIT", "SampleAfterValue": "200003", "BriefDescription": "Load uops that split a page (Precise event capable)" }, { "PEBS": "2", "CollectPEBSRecord": "2", "PublicDescription": "Counts when a memory store of a uop spans a page boundary (a split) is retired.", "EventCode": "0x13", "Counter": "0,1,2,3", "UMask": "0x4", "EventName": "MISALIGN_MEM_REF.STORE_PAGE_SPLIT", "SampleAfterValue": "200003", "BriefDescription": "Store uops that split a page (Precise event capable)" } ]