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