Intel ARCHITECTURE IA-32 User Manual

Page 495

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Using Performance Monitoring Events

B

B-41

UC Write
Partial (BSQ)

The number of UC
write transactions.
Beware of granularity
issues between BSQ
and FSB IOQ events.

BSQ_allocation

1.

REQ_TYPE0|

REQ_LEN0

|

REQ_SPLIT_TYPE

|

REQ_ORD_TYPE

|

REQ_DEM_TYPE

2. Enable edge

filtering

6

in

the CCCR.

IO Reads
Chunk (BSQ)

The number of
8-byte aligned IO
port read
transactions.

BSQ_allocation

1.

REQ_LEN0|

REQ_ORD_TYPE|

REQ_IO_TYPE

|

REQ_DEM_TYPE

2. Enable edge

filtering

6

in

the CCCR.

IO Writes
Chunk (BSQ)

The number of IO
port write
transactions.

BSQ_allocation

1. REQ_TYPE0

|

REQ_LEN0

|

REQ_ORD_TYPE|RE

Q_IO_TYPE

|REQ_D

EM_TYPE

2. Enable edge

filtering

6

in

the CCCR.

continued

Table B-1

Pentium 4 Processor Performance Metrics (continued)

Metric

Description

Event Name or Metric
Expression

Event Mask Value
Required

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