Kabini

Architecture specific notes for AMD Kabini

Performance groups

The following performance groups are partly based on the report by AMD fellow Paul J. Drongowski: Basic Performance Measurements for AMD Athlon™ 64, AMD Opteron™ and AMD Phenom™ Processors.

AMD Kabini Performance groups

Events

The input file for the events on AMD Kabini can be found here.

Counters

• Core-local counters
  • General-purpose counters
• Cache-wide counters
  • L2 general-purpose counters
• Socket-wide counters
  • Northbridge general-purpose counters

Core-local counters

General-purpose counters

The AMD® Kabini microarchitecture provides 4 general-purpose counters consisting of a config and a counter register.

Counters

Counter name	Event name
PMC0	*
PMC1	*
PMC2	*
PMC3	*

##### Available Options

Option	Argument	Description	Comment
edgedetect	N	Set bit 18 in config register
kernel	N	Set bit 17 in config register
threshold	8 bit hex value	Set bits 24-31 in config register	The value for threshold can range between 0x0 and 0x3
invert	N	Set bit 23 in config register

Cache-wide counters

L2 general-purpose counters

The AMD® Kabini microarchitecture provides 4 general-purpose counters for measuring L2 cache events. They consist of a config and a counter register.

Counters

Counter name	Event name
CPMC0	*
CPMC1	*
CPMC2	*
CPMC3	*

##### Available Options

Option	Argument	Description	Comment
threshold	8 bit hex value	Set bits 24-31 in config register	The value for threshold can range between 0x0 and 0x3
invert	N	Set bit 23 in config register
tid	4 bit hex value	Set bits 56-59 in config register	If bit equals 0, the events of the thread are counted. See BIOS and Kernel Developer’s Guide (BKDG) for AMD Family 16h Processors for details.
nid	4 bit hex value	Set bits 48-51 in config register	If bit equals 0, the events of the thread are counted. See BIOS and Kernel Developer’s Guide (BKDG) for AMD Family 16h Processors for details.

Socket-wide counters

Northbridge general-purpose counters

The AMD® Kabini microarchitecture provides 4 general-purpose counters for the Northbridge consiting of a config and a counter register.

Counters

Counter name	Event name
UPMC0	*
UPMC1	*
UPMC2	*
UPMC3	*