Intel ARCHITECTURE IA-32 Reference Manual page 493

Table B-1 Pentium 4 Processor Performance Metrics (continued)
Metric Description
Write WC Full The number of write
(BSQ) (but neither
writeback nor RFO)
transactions to
WC-type memory.
Write WC The number of
Partial (BSQ) partial write
transactions to
WC-type memory.
User note: This event
may undercount WC
partials that originate
from DWord
operands.
Writes WB Full The number of
(BSQ) writeback (evicted
from cache)
transactions to
WB-type memory.
Note: These
writebacks may not
have a
corresponding FSB
IOQ transaction if
3rd level cache is
present.
Using Performance Monitoring Events
Event Name or Metric
Expression
BSQ_allocation
BSQ_allocation
BSQ_allocation
B
Event Mask Value
Required
1. REQ_TYPE1|
REQ_LEN0|
REQ_LEN1|MEM_
TYPE0|REQ_DEM_
TYPE
2. Enable edge
6
filtering in
the CCCR.
1. REQ_TYPE1|
REQ_LEN0|
MEM_TYPE0|
REQ_DEM_TYPE
2. Enable edge
6
filtering in
the CCCR.
1. REQ_TYPE0|
REQ_TYPE1|
REQ_LEN0|
REQ_LEN1|
MEM_TYPE1|
MEM_TYPE2|
REQ_CACHE_TYPE|
REQ_DEM_TYPE
2. Enable edge
6
filtering in
the CCCR.
continued
B-39