Intel BX80571E7500 - Core 2 Duo 2.93 GHz Processor Programming Manual page 36

I ® X ® P 7500 S
NTEL EON ROCESSOR
Extension
EGRESS_FULL
VIQ_FULL
NO_TRACKER_CREDITS
NO_S_FIFO_CREDITS
NO_S_REQTBL_ENTRIES
WB_PENDING
NACK2_ELSE
OCCUPANCY_IPQ
• Title: IPQ Occupancy
• Category: Queue Occupancy
• Event Code: 0x1A, Max. Inc/Cyc: 8,
• Definition: Cumulative count of occupancy in the LLC's Ingress Probe Queue.
OCCUPANCY_IRQ
• Title: IRQ Occupancy
• Category: Queue Occupancy
• Event Code: 0x18, Max. Inc/Cyc: 24,
• Definition: Cumulative count of occupancy in the LLC's Ingress Response Queue.
OCCUPANCY_MAF
• Title: MAF Occupancy
• Category: Queue Occupancy
• Event Code: 0x1E, Max. Inc/Cyc: 16,
• Definition: Cumulative count of occupancy in the LLC's Miss Address File.
OCCUPANCY_RSPF
• Title: RSPF Occupancy
• Category: Queue Occupancy
• Event Code: 0x22, Max. Inc/Cyc: 8,
• Definition: Cumulative count of occupancy in the Snoop Response FIFO.
U P G
ERIES NCORE ROGRAMMING UIDE
umask
[15:8]
bxxxxxx1x Some incoming message to the LLC that needed to generate a
response message for transmission onto the ring was delayed due to
ring back pressure.
bxxxxx1xx An incoming local processor RD request that missed the LLC was
delayed because the LLC victim buffer was full.
bxxxx1xxx An incoming local processor RD or WR request was delayed because it
required a Home tracker credit (for example, LLC RD Miss) and no
credit was available.
bxxx1xxxx Some incoming message to the LLC that needed to generate a
message to the S-Box was delayed due to lack of available buffering
resources in the S-Box.
bxx1xxxxx An incoming local processor Rd or WR that needed to generate a
transaction to Home (for example, LLC RD Miss) was delayed because
the S-Box Request Table was full.
bx1xxxxxx An incoming remote Intel QPI snoop request to the LLC was delayed
because it conflicted with an existing transaction that had a WB to
Home pending.
b1xxxxxxx Some incoming message to the LLC was delayed for a reason not
covered by any of the other MAF_NACK1 or MAF_NACK2 sub-events.
UNCORE PERFORMANCE MONITORING
Description
2-24