19-176 Vol. 3B
PERFORMANCE-MONITORING EVENTS
Counter numbers
per ESCR
ESCR0: 8, 9
ESCR1: 10, 11
ESCR Event Select
08H
ESCR[31:25]
ESCR Event Mask
Bit
0: LSC
1: SSC
ESCR[24:9]
Load split completed, excluding UC/WC loads.
Any split stores completed.
CCCR Select
02H
CCCR[15:13]
load_port_replay
This event counts replayed events at the load port. Specify one or
more mask bits to select the cause of the replay.
ESCR restrictions
MSR_SAAT_ESCR0
MSR_SAAT_ESCR1
Counter numbers
per ESCR
ESCR0: 8, 9
ESCR1: 10, 11
ESCR Event Select
04H
ESCR[31:25]
ESCR Event Mask
Bit 1: SPLIT_LD
ESCR[24:9]
Split load.
CCCR Select
02H
CCCR[15:13]
Event Specific
Notes
Must use ESCR1 for at-retirement counting.
store_port_replay
This event counts replayed events at the store port. Specify one or
more mask bits to select the cause of the replay.
ESCR restrictions
MSR_SAAT_ESCR0
MSR_SAAT_ESCR1
Counter numbers
per ESCR
ESCR0: 8, 9
ESCR1: 10, 11
ESCR Event Select
05H
ESCR[31:25]
ESCR Event Mask
Bit 1: SPLIT_ST
ESCR[24:9]
Split store
CCCR Select
02H
CCCR[15:13]
Event Specific
Notes
Must use ESCR1 for at-retirement counting.
MOB_load_replay
This event triggers if the memory order buffer (MOB) caused a load
operation to be replayed. Specify one or more mask bits to select the
cause of the replay.
ESCR restrictions
MSR_MOB_ESCR0
MSR_MOB_ESCR1
Counter numbers
per ESCR
ESCR0: 0, 1
ESCR1: 2, 3
ESCR Event Select
03H
ESCR[31:25]
Table 19-28. Performance Monitoring Events Supported by Intel NetBurstĀ® Microarchitecture
for Non-Retirement Counting (Contd.)
Event Name
Event Parameters Parameter Value
Description