Intel BX80571E7500 - Core 2 Duo 2.93 GHz Processor Programming Manual page 39

I ® X ® P 7500 S
NTEL EON ROCESSOR
SNPS
• Title: Snoops to LLC
• Category: Local - CC
• Event Code: 0x27, Max. Inc/Cyc: 1,
• Definition: Number of Intel QPI snoops seen by the LLC.
• NOTE: Subtract CACHE_CHAR_QUAL.ANY_HIT from this event to determine how many snoops
missed the LLC.
Extension
---
REMOTE_RD
REMOTE_RFO
REMOTE_ANY
STARVED_EGRESS
• Title: Egress Queue Starved
• Category: Local - EGR
• Event Code: 0x0B, Max. Inc/Cyc: 8,
• Definition: Number of cycles that an Egress Queue is in starvation
Extension
---
P2C_AD_SB
C2S_AD_SB
AD_SB
AD_NSB
AD
AK_SB
AK_NSB
AK
BL_SB
BL_NSB
BL
IV
TRANS_IPQ
• Title: IPQ Transactions
• Category: Queue Occupancy
• Event Code: 0x1B, Max. Inc/Cyc: 1,
• Definition: Number of Intel QPI snoop probes that entered the LLC's Ingress Probe Queue.
U P G
ERIES NCORE ROGRAMMING UIDE
umask
[15:8]
b00000000 (*nothing will be counted*)
b000000x1 Remote Read - Goto S State. Intel QPI snoops (SnpData or SnpCode)
to LLC that caused a transition to S in the cache.
NOTE: ALL SnpData and SnpCode transactions are counted. If
SnpData HITM policy is M->I, this subevent will capture those snoops.
b0000001x Remote RFO - Goto I State. Intel QPI snoops (SnpInvOwn or
SnpInvItoE) to LLC that caused an invalidate of a cache line.
b00000011 Intel QPI snoops to LLC that hit in the cache line
umask
[15:8]
b00000000 (*nothing will be counted*)
b00000001 Processor-to-C-Box AD Egress that injects in the direction toward the
nearest S-Box
b00000010 C-Box-to-S-Box AD Egress.
b00000011 Sum of AD Egresses that injects in the direction toward the nearest S-
Box
b00000100 Sum across both AD Egress that inject in the direction away from the
nearest S-Box.
b00000111 Sum across all AD Egresses
b00001000 AK Egress that injects in the direction toward the nearest S-Box.
b00010000 AK Egress that injects in the direction away from the nearest S-Box.
b00011000 Sum across all AK Egresses.
b00100000 BL Egress that injects in the direction toward the nearest S-Box.
b01000000 BL Egress that injects in the direction away from the nearest S-Box.
b01100000 Sum across all BL Egresses.
b10000000 IV Egress
UNCORE PERFORMANCE MONITORING
Description
Description
2-27