19-116 Vol. 3B

PERFORMANCE-MONITORING EVENTS

19.9 

PERFORMANCE MONITORING EVENTS FOR INTEL

®

XEON

®

 PROCESSOR 

5200, 5400 SERIES AND INTEL

®

CORE

™

2

 

EXTREME PROCESSORS QX 

9000 SERIES

80H

02H

UNC_THERMAL_THROTTLING_

TEMP.CORE_1

Cycles that the PCU records that core 1 is above the 

thermal throttling threshold temperature.

80H

04H

UNC_THERMAL_THROTTLING_

TEMP.CORE_2

Cycles that the PCU records that core 2 is above the 

thermal throttling threshold temperature.

80H

08H

UNC_THERMAL_THROTTLING_

TEMP.CORE_3

Cycles that the PCU records that core 3 is above the 

thermal throttling threshold temperature.

81H

01H

UNC_THERMAL_THROTTLED_

TEMP.CORE_0

Cycles that the PCU records that core 0 is in the power 

throttled state due to core’s temperature being above 

the thermal throttling threshold.

81H

02H

UNC_THERMAL_THROTTLED_

TEMP.CORE_1

Cycles that the PCU records that core 1 is in the power 

throttled state due to core’s temperature being above 

the thermal throttling threshold.

81H

04H

UNC_THERMAL_THROTTLED_

TEMP.CORE_2

Cycles that the PCU records that core 2 is in the power 

throttled state due to core’s temperature being above 

the thermal throttling threshold.

81H

08H

UNC_THERMAL_THROTTLED_

TEMP.CORE_3

Cycles that the PCU records that core 3 is in the power 

throttled state due to core’s temperature being above 

the thermal throttling threshold.

82H

01H

UNC_PROCHOT_ASSERTION

Number of system assertions of PROCHOT indicating 

the entire processor has exceeded the thermal limit.

83H

01H

UNC_THERMAL_THROTTLING_

PROCHOT.CORE_0

Cycles that the PCU records that core 0 is a low power 

state due to the system asserting PROCHOT the entire 

processor has exceeded the thermal limit.

83H

02H

UNC_THERMAL_THROTTLING_

PROCHOT.CORE_1

Cycles that the PCU records that core 1 is a low power 

state due to the system asserting PROCHOT the entire 

processor has exceeded the thermal limit.

83H

04H

UNC_THERMAL_THROTTLING_

PROCHOT.CORE_2

Cycles that the PCU records that core 2 is a low power 

state due to the system asserting PROCHOT the entire 

processor has exceeded the thermal limit.

83H

08H

UNC_THERMAL_THROTTLING_

PROCHOT.CORE_3

Cycles that the PCU records that core 3 is a low power 

state due to the system asserting PROCHOT the entire 

processor has exceeded the thermal limit.

84H

01H

UNC_TURBO_MODE.CORE_0

Uncore cycles that core 0 is operating in turbo mode.

84H

02H

UNC_TURBO_MODE.CORE_1

Uncore cycles that core 1 is operating in turbo mode.

84H

04H

UNC_TURBO_MODE.CORE_2

Uncore cycles that core 2 is operating in turbo mode.

84H

08H

UNC_TURBO_MODE.CORE_3

Uncore cycles that core 3 is operating in turbo mode.

85H

02H

UNC_CYCLES_UNHALTED_L3_

FLL_ENABLE

Uncore cycles that at least one core is unhalted and all 

L3 ways are enabled.

86H

01H

UNC_CYCLES_UNHALTED_L3_

FLL_DISABLE

Uncore cycles that at least one core is unhalted and all 

L3 ways are disabled.

Table 19-20.  Non-Architectural Performance Events In the Processor Uncore for 

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

Event

Num.

Umask

Value

Event Mask Mnemonic

Description

Comment