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Tiger Lake - Offcore Events

Microarchitectures

Offcore Events

Event Name Description Programming Info
OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HITM Counts demand data reads that hit a cacheline in the L3 where a snoop hit in another cores caches, data forwarding is required as the data is modified. EventSel={B7H,BBH} UMask=01H MSR_OFFCORE_RSPx{1A6H,1A7H}=10003C0001H
OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HIT_WITH_FWD Counts demand data reads that hit a cacheline in the L3 where a snoop hit in another cores caches which forwarded the data to the requesting core. EventSel={B7H,BBH} UMask=01H MSR_OFFCORE_RSPx{1A6H,1A7H}=8003C0001H
OCR.DEMAND_RFO.L3_HIT.SNOOP_HITM Counts demand reads for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that hit a cacheline in the L3 where a snoop hit in another cores caches, data forwarding is required as the data is modified. EventSel={B7H,BBH} UMask=01H MSR_OFFCORE_RSPx{1A6H,1A7H}=10003C0002H
OCR.STREAMING_WR.ANY_RESPONSE Counts streaming stores that have any type of response. EventSel={B7H,BBH} UMask=01H MSR_OFFCORE_RSPx{1A6H,1A7H}=10800H