Intel ARCHITECTURE IA-32 Reference Manual page 483

Table B-1 Pentium 4 Processor Performance Metrics (continued)
Metric Description
3rd-Level The number of
Cache Reads 3rd-level cache read
Hit Modified references (loads
and RFOs) that hit
the cache line in
modified state.
Beware of granularity
differences.
3rd-Level The number of
Cache Reads 3rd-level cache read
Hit Exclusive references (loads
and RFOs) that hit
the cache line in
exclusive state.
Beware of granularity
differences.
MOB Load The number of
retired load μops that
Replays Retired
experienced replays
related to the MOB.
Loads Retired The number of
retired load
operations that were
tagged at the front
end.
Stores Retired The number of
retired stored
operations that were
tagged at the front
end. This stat is often
used in a
per-instruction ratio.
Using Performance Monitoring Events
Event Name or Metric
Expression
BSQ_cache_reference
BSQ_cache_reference
Replay_event; set the
following replay tag:
MOB_load_replay_
retired
Front_end_event; set
the following front end
tag: Memory_loads
Front_end_event; set
the following front end
tag: Memory_stores
B
Event Mask Value
Required
RD_3rdL_HITM
RD_3rdL_HITE
NBOGUS
NBOGUS
NBOGUS
continued
B-29