Vol. 3B 19-87

PERFORMANCE-MONITORING EVENTS

0FH

01H

MEM_UNCORE_RETIRED.UNK

NOWN_SOURCE

Load instructions retired with unknown LLC miss 

(Precise Event).

Applicable to one and 

two sockets.

0FH

02H

MEM_UNCORE_RETIRED.OHTE

R_CORE_L2_HIT

Load instructions retired that HIT modified data in 

sibling core (Precise Event).

Applicable to one and 

two sockets.

0FH

04H

MEM_UNCORE_RETIRED.REMO

TE_HITM

Load instructions retired that HIT modified data in 

remote socket (Precise Event).

Applicable to two 

sockets only.

0FH

08H

MEM_UNCORE_RETIRED.LOCA

L_DRAM_AND_REMOTE_CACH

E_HIT

Load instructions retired local dram and remote 

cache HIT data sources (Precise Event).

Applicable to one and 

two sockets.

0FH

10H

MEM_UNCORE_RETIRED.REMO

TE_DRAM

Load instructions retired remote DRAM and remote 

home-remote cache HITM (Precise Event).

Applicable to two 

sockets only.

0FH

20H

MEM_UNCORE_RETIRED.OTHE

R_LLC_MISS

Load instructions retired other LLC miss (Precise 

Event).

Applicable to two 

sockets only.

0FH

80H

MEM_UNCORE_RETIRED.UNCA

CHEABLE

Load instructions retired I/O (Precise Event).

Applicable to one and 

two sockets.

10H

01H

FP_COMP_OPS_EXE.X87

Counts the number of FP Computational Uops 

Executed. The number of FADD, FSUB, FCOM, 

FMULs, integer MULs and IMULs, FDIVs, FPREMs, 

FSQRTS, integer DIVs, and IDIVs. This event does 

not distinguish an FADD used in the middle of a 

transcendental flow from a separate FADD 

instruction.

10H

02H

FP_COMP_OPS_EXE.MMX

Counts number of MMX Uops executed.

10H

04H

FP_COMP_OPS_EXE.SSE_FP

Counts number of SSE and SSE2 FP uops executed.

10H

08H

FP_COMP_OPS_EXE.SSE2_INT

EGER

Counts number of SSE2 integer uops executed.

10H

10H

FP_COMP_OPS_EXE.SSE_FP_P

ACKED

Counts number of SSE FP packed uops executed.

10H

20H

FP_COMP_OPS_EXE.SSE_FP_S

CALAR

Counts number of SSE FP scalar uops executed.

10H

40H

FP_COMP_OPS_EXE.SSE_SING

LE_PRECISION

Counts number of SSE* FP single precision uops 

executed.

10H

80H

FP_COMP_OPS_EXE.SSE_DOU

BLE_PRECISION

Counts number of SSE* FP double precision uops 

executed.

12H

01H

SIMD_INT_128.PACKED_MPY

Counts number of 128 bit SIMD integer multiply 

operations.

12H

02H

SIMD_INT_128.PACKED_SHIFT Counts number of 128 bit SIMD integer shift 

operations.

12H

04H

SIMD_INT_128.PACK

Counts number of 128 bit SIMD integer pack 

operations.

12H

08H

SIMD_INT_128.UNPACK

Counts number of 128 bit SIMD integer unpack 

operations.

12H

10H

SIMD_INT_128.PACKED_LOGIC

AL

Counts number of 128 bit SIMD integer logical  

operations.

12H

20H

SIMD_INT_128.PACKED_ARIT

H

Counts number of 128 bit SIMD integer arithmetic 

operations.

Table 19-19.  Non-Architectural Performance Events In the Processor Core for 

Processors Based on Intel® Microarchitecture Code Name Westmere (Contd.)

Event

Num.

Umask

Value

Event Mask Mnemonic

Description

Comment