Intel ARCHITECTURE IA-32 User Manual

Page 479

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Using Performance Monitoring Events

B

B-25

Memory Metrics

Page Walk
DTLB All
Misses

The number of page
walk requests due to
DTLB misses from
either load or store.

page_walk_type

DTMISS

1

st

-Level Cache

Load Misses
Retired

The number of
retired

μops that

experienced
1

st

-Level cache load

misses. This stat is
often used in a
per-instruction ratio.

Replay_event

; set the

following replay tag:
1stL_cache_load

_miss_retired

NBOGUS

2

nd

-Level

Cache Load
Misses Retired

The number of
retired load

μops that

experienced
2

nd

-Level cache

misses. This stat is
known to undercount
when loads are
spaced apart.

Replay_event; set the
following replay tag:
2ndL_cache_load_

miss_retired

NBOGUS

DTLB Load
Misses Retired

The number of
retired load

μops that

experienced DTLB
misses.

Replay_event

; set the

following replay tag:
DTLB_load_miss_

retired

NBOGUS

DTLB Store
Misses Retired

The number of
retired store

μops

that experienced
DTLB misses.

Replay_event

; set the

following replay tag:
DTLB_store_miss_

retired

NBOGUS

DTLB Load and
Store Misses
Retired

The number of
retired load or

μops

that experienced
DTLB misses.

Replay_event

; set the

following replay tag:
DTLB_all_miss_

retired

NBOGUS

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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