19-24 Vol. 3B

PERFORMANCE-MONITORING EVENTS

60H

01H

OFFCORE_REQUESTS_OUTSTAN

DING.DEMAND_DATA_RD

Offcore outstanding demand data read transactions 

in SQ to uncore. Set Cmask=1 to count cycles.

Use only when HTT is 

off.

60H

02H

OFFCORE_REQUESTS_OUTSTAN

DING.DEMAND_CODE_RD

Offcore outstanding Demand code Read transactions 

in SQ to uncore. Set Cmask=1 to count cycles.

Use only when HTT is 

off.

60H

04H

OFFCORE_REQUESTS_OUTSTAN

DING.DEMAND_RFO

Offcore outstanding RFO store transactions in SQ to 

uncore. Set Cmask=1 to count cycles.

Use only when HTT is 

off.

60H

08H

OFFCORE_REQUESTS_OUTSTAN

DING.ALL_DATA_RD

Offcore outstanding cacheable data read 

transactions in SQ to uncore. Set Cmask=1 to count 

cycles.

Use only when HTT is 

off.

63H

01H

LOCK_CYCLES.SPLIT_LOCK_UC_

LOCK_DURATION

Cycles in which the L1D and L2 are locked, due to a 

UC lock or split lock.

63H

02H

LOCK_CYCLES.CACHE_LOCK_DU

RATION

Cycles in which the L1D is locked.

79H

02H

IDQ.EMPTY

Counts cycles the IDQ is empty.

79H

04H

IDQ.MITE_UOPS

Increment each cycle # of uops delivered to IDQ from 

MITE path. Set Cmask = 1 to count cycles.

Can combine Umask 04H 

and 20H.

79H

08H

IDQ.DSB_UOPS

Increment each cycle. # of uops delivered to IDQ 

from DSB path. Set Cmask = 1 to count cycles.

Can combine Umask 08H 

and 10H.

79H

10H

IDQ.MS_DSB_UOPS

Increment each cycle # of uops delivered to IDQ 

when MS_busy by DSB. Set Cmask = 1 to count 

cycles. Add Edge=1 to count # of delivery.

Can combine Umask 04H, 

08H. 

79H

20H

IDQ.MS_MITE_UOPS

Increment each cycle # of uops delivered to IDQ 

when MS_busy by MITE. Set Cmask = 1 to count 

cycles.

Can combine Umask 04H, 

08H.

79H

30H

IDQ.MS_UOPS

Increment each cycle # of uops delivered to IDQ from 

MS by either DSB or MITE. Set Cmask = 1 to count 

cycles.

Can combine Umask 04H, 

08H. 

79H

18H

IDQ.ALL_DSB_CYCLES_ANY_UO

PS

Counts cycles DSB is delivered at least one uops. Set 

Cmask = 1.

79H

18H

IDQ.ALL_DSB_CYCLES_4_UOPS Counts cycles DSB is delivered four uops. Set Cmask 

= 4.

79H

24H

IDQ.ALL_MITE_CYCLES_ANY_UO

PS

Counts cycles MITE is delivered at least one uop. Set 

Cmask = 1.

79H

24H

IDQ.ALL_MITE_CYCLES_4_UOPS Counts cycles MITE is delivered four uops. Set Cmask 

= 4.

79H

3CH

IDQ.MITE_ALL_UOPS

# of uops delivered to IDQ from any path. 

80H

02H

ICACHE.MISSES

Number of Instruction Cache, Streaming Buffer and 

Victim Cache Misses. Includes UC accesses.

85H

01H

ITLB_MISSES.MISS_CAUSES_A_

WALK

Misses in ITLB that causes a page walk of any page 

size.

85H

02H

ITLB_MISSES.WALK_COMPLETE

D_4K

Completed page walks due to misses in ITLB 4K page 

entries.

85H

04H

ITLB_MISSES.WALK_COMPLETE

D_2M_4M

Completed page walks due to misses in ITLB 2M/4M 

page entries.

85H

0EH

ITLB_MISSES.WALK_COMPLETE

D

Completed page walks in ITLB of any page size.

Table 19-7.  Non-Architectural Performance Events in the Processor Core of 

4th Generation Intel® Core™ Processors (Contd.)

Event

Num.

Umask

Value

Event Mask Mnemonic

Description

Comment