IA-32 Intel® Architecture Optimization
Tags for front_end_event
Table B-3 provides a list of the tags that are used by various metrics
derived from the
column 2 can be found from the Pentium 4 processor performance
monitoring events.
Table B-3
Table 3 Metrics That Utilize the Front-end Tagging Mechanism
Front-end MetricTags
Memory_loads
Memory_stores
1. There may be some undercounting of front end events when there is an overflow or underflow of the floating point
stack.
Tags for execution_event
Table B-4 provides a list of the tags that are used by various metrics
derived from the
an upstream ESCR to select event mask with its
bit fields. The event mask for the downstream ESCR is specified in
column 4. The event names referenced in column 4 can be found in the
Pentium 4 processor performance monitoring events.
B-48
front_end_event
1
Additional MSR
Set the TAGLOADS bit in
Uop_Type
Set the TAGSTORES bit in
Uop_Type
execution_event
. The event names referenced in
See Event Mask Parameter for
Front_end_event
NBOGUS
NBOGUS
. These tags require programming
TagUop
and
TagValue
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