Linux support for various PMUs

This lists Linux support for various chips and various kernel interfaces.

There's a related list for power measurement (RAPL) support available here.

The "perf_event" column tells which Linux kernel first supported the chip using the perf_event subsystem. Note this is complicated by distributions like RHEL which backports newe CPU support back to older kernels.

The "perfctr" column says whether the current "perfctr" patch supports this chip.

The "libpfm3" and "libpfm4" columns say whether those respective libraries support the events for the chip.

The "PAPI" column says whether the current version of PAPI supports things (in general PAPI should support any chip that has both libpfm4 and perf_event support. Adding support tends to be just adding the proper preset events in the papi_events.csv file).

x86

x86 AMD

Name	Family	Model	perf_event	NorthBridge	L2I/LLC	perfctr	libpfm3¹	libpfm4	PAPI
Athlon K7	6	*	2.6.31	n/a	n/a	yes	yes	yes	yes
Opteron K8	15	*	2.6.31	n/a	n/a	yes	yes	yes	yes
Family 10h Rev B (Barcelona)	16	1,2,3	2.6.31	2.6.34	n/a	yes	yes	yes	yes
Family 10h Rev C (Shanghai)	16	4,5,6	2.6.31	2.6.34	n/a	yes	yes	yes	yes
Family 10h Rev D (Istanbul)	16	8	2.6.31	2.6.34	n/a	yes	yes	yes	yes
Family 10h Rev D (Magny Cours)	16	9,10	2.6.31	2.6.34	n/a	yes	yes	yes	yes
Family 10h Rev E (???)	16	??	2.6.31	2.6.34	n/a	yes	yes	yes	yes
Family 11h Turion	17	*	2.6.31	2.6.34	n/a	yes	no	yes	yes
Family 12h Llano	18	*	2.6.31	2.6.34	n/a	no	no	yes	yes
Family 14h Bobcat	20	*	2.6.31?	2.6.34	n/a	no	no	yes	yes
Family 15h Bulldozer	21	1	2.6.39	3.9 / 3.10	n/a	no	yes	yes	yes
Family 15h Piledriver	21	2, 10, 13	2.6.39	3.9 / 3.10	n/a	no	yes	yes	yes
Family 15h Steamroller	21	48	2.6.39	3.9 / 3.10	n/a	no	yes	yes	yes
Family 15h Excavator	21	96	2.6.39	3.9 / 3.10	n/a	no	yes	yes	yes
Family 15h ???	21	112	2.6.39	3.9 / 3.10	n/a	no	yes	yes	yes
Family 16h Jaguar	22	0	2.6.31?	3.10	3.10	no	no	yes	yes
Family 16h Jaguar "Mullins"	22	48	2.6.31?	3.10	3.10	no	no	yes	yes
Family 17h Zen1 / Zen+	23	1-47 (0x01 - 0x2f)	4.9	4.11	4.11	no	no	yes	yes
Family 17h Zen2 (Matisse, Castle Peak, Rome)	23	48-255 (0x30 - 0xff)	4.9?	4.11?	4.11?	no	no	yes	??
Family 19h Zen3	25	?	?	?	?	no	no	yes	??

Notes:

As shipped with PAPI

A more complete list of northbridge support can be found here.

x86 Intel

Name	Family	Model	perf_event	perf_event uncore	perfctr	libpfm3⁶	libpfm4	PAPI
Pentium	5	1,2,4	no	n/a	yes	no	no	no
Pentium Pro	6	1	2.6.31	n/a	yes	yes	yes	yes
Pentium II	6	3,5,6	2.6.31	n/a	yes	yes	yes	yes
Pentium III	6	7,8,10,11	2.6.31	n/a	yes	yes	yes	yes
Pentium M	6	9,13	2.6.31	n/a	yes	yes	yes	yes
Pentium 4	15	0,1,2	2.6.35¹	n/a	yes	yes	yes	yes
Pentium D	15	3,4,6	2.6.35¹	n/a	yes	yes	yes	yes
Core Duo	6	14	2.6.34	n/a	yes	yes	yes	yes
Core2	6	15,22,23,29	2.6.31	n/a	yes	yes	yes	yes
Atom	6	28,38,39,53	2.6.31¹⁰	n/a	yes¹⁰	yes¹⁰	yes	yes
Atom Cedarview	6	54	3.6	n/a	no	no	yes	yes
Atom Silvermont	6	55,74,77,90,93	3.12	no?	no	no	yes	yes
Atom Airmont "Braswell"	6	76	3.19?	no?	no	no	yes	no
Atom Goldmont (Apollo Lake)	6	92, 95	4.7	no?	no	no	yes	no
Atom Goldmont Plus (Gemini Lake)	6	122	4.12	no?	no	no	no	no
Atom Tremont	6	134, 150, 156	??	no?	??	??	??	??
Nehalem	6	26,30,31	2.6.31^7,8	?	yes⁸	yes	yes	yes
Nehalem EX	6	46	2.6.34³	3.6	yes	yes	yes	yes
Westmere	6	37,44	2.6.34³	3.6	yes	yes	yes	yes
Westmere EX (E7)	6	47	2.6.39³	3.6	no	no	yes	yes
Sandy Bridge	6	42	2.6.39³	3.6	no	no	yes	yes
Sandy Bridge EP	6	45	3.1³	3.6	no	no	yes	yes
Ivy Bridge	6	58	3.5	3.10	no	no	yes	yes
Ivy Bridge EP ("IvyTown")	6	62	3.8	3.10	no	no	yes	yes
Haswell	6	60,70	3.10	3.15/4.3	no	no	yes	yes
Haswell ULT	6	69	3.10	3.15/4.3	no	no	yes	yes
Haswell EP	6	63	3.10	3.18	no	no	yes	yes
Broadwell	6	61	4.1/4.2	4.2	no	no	yes	yes
Broadwell-H	6	71	4.1/4.2	4.3	no	no	yes	yes
Broadwell-DE	6	86	4.1/4.2	4.3	no	no	yes	yes
Broadwell EP	6	79	4.2	4.5	no	no	yes	yes
Skylake Mobile	6	78	4.3	4.8	no	no	yes	yes
Skylake H/S Desktop	6	94	4.3	4.8	no	no	yes	yes
Skylake X Server	6	85 Stepping 0-4	4.6	4.9	no	no	yes	yes
Kabylake	6	158	4.6	??	no	no	yes	yes
Coffeelake	6	158 Stepping 10-13	4.6	??	no	no	yes	yes
Kabylake L (Cofeelake L (step 9), Amberlake L (step 10), Whiskeylake L (step 11,12)	6	142	4.6	??	no	no	yes	yes
Cascadelake Server	6	85 Stepping 7	4.6	4.9	no	no	yes	yes
Cooperlake Server	6	85 Stepping 11	??	??	??	??	??	??
Cometlake	6	165	??	??	??	??	??	??
Cometlake L	6	166	??	??	??	??	??	??
Cannonlake / Palm Cove	6	102	??	??	??	??	??	??
Icelake	6	106, 108, 125, 126, 157	??	??	??	??	??	??
Lakefield	6	138	??	??	??	??	??	??
Rocketlake	6	167	??	??	??	??	??	??
Tigerlake	6	140 (L), 141	??	??	??	??	??	??
Sapphirerapids X	6	143	??	??	??	??	??	??
Alderlake	6	151, 154, 190	??	??	??	??	??	??
Raptorlake	6	183, 186	??	??	??	??	??	??
Knights Landing	6	87	4.6	4.5	no	no	yes	yes
Knights Mill	6	133	4.9	4.9	no	no	yes	yes
Knights Corner	11	??	3.7	?	no	no	yes	yes

Notes:

1. Pentium 4 and Pentium D support introduced in 2.6.35, but still has major issues as of 2.6.39.
3. Support for offcore events added in 3.3
6. As shipped with PAPI
7. Model 30 supported added 2.6.34.
8. Model 31 not supported, has Nehalem-like counters but Westmere-like uncore (does it even exist?)
10. Models 38,39,53 added in 3.8

A more complete list of uncore/offcore support can be found here.

x86 VIA

Name	Family	Model	perf_event	perfctr	libpfm3⁶	libpfm4	PAPI
C3	6	?	no	yes	no	no	no

x86 Cyrix

Name	Family	Model	perf_event	perfctr	libpfm3⁶	libpfm4	PAPI
6x86/MII/MIII	5	?	no	yes	no	no	no

ARM

Name	Family	perf_event	perfctr	libpfm3	libpfm4	PAPI
Intel XScale 1	ARMv5	2.6.38	yes	no	no	no
Intel XScale 2	ARMv5	2.6.38	yes	no	no	no
ARM 1136	ARMv6	2.6.34	no	no	no	no
ARM 1156	ARMv6	2.6.34	no	no	no	no
ARM 1176	ARMv6	2.6.34	no	no	yes	yes
ARM mpcore	ARMv6	2.6.34	no	no	no	no
ARM Cortex A5	ARMv7	3.1	no	no	no	no
ARM Cortex A7	ARMv7	3.4	no	no	yes	yes
ARM Cortex A8	ARMv7	2.6.34¹	no	no	yes	yes
ARM Cortex A9	ARMv7	2.6.34¹	no	no	yes	yes
ARM Cortex A12	ARMv7	3.15	no	no	no	no
ARM Cortex A15	ARMv7	3.1	no	no	yes	yes
Qualcomm Krait	ARMv7	3.17	no	no	yes	yes
Qualcomm Scoprion	ARMv7	4.1	no	no	no	no

Note that Cortex A8 and Cortex A9 processors reportedly have a bug where PMU interrupts may be lost, making perf_event usage problematic.

ARM64

Name	Family	perf_event	perfctr	libpfm3	libpfm4	PAPI
ARM Cortex A35	ARMv8	4.14	no	no	no	no
ARM Cortex A53	ARMv8	3.7	no	no	yes	yes
ARM Cortex A57	ARMv8	3.7	no	no	yes	yes
ARM Cortex A72	ARMv8	4.5	no	no	no	no
ARM Cortex A73	ARMv8	4.14	no	no	no	no
Applied Micro Xgene	ARMv8	3.7	no	no	yes	yes
Broadcom Vulcan	ARMv8	4.7	no	no	no	no
Cavium ThunderX	ARMv8	4.6	no	no	yes	yes

Alpha

Name	perf_event	perfctr	libpfm3	libpfm4	PAPI
EV5 (21164)	no	no	no	no	no¹
EV67 (21264)	2.6.36	no	no	no	no¹

Notes:

Support removed from PAPI

AVR32

ARC

Name	perf_event	perfctr	libpfm3	libpfm4	PAPI
ARCv2	4.3	no	no	no	no

Blackfin

Name	perf_event	perfctr	libpfm3	libpfm4	PAPI
Blackfin	3.0	no	no	no	no

itanium

Name	Family	Model	perf_event	perfctr	libpfm3	libpfm4	PAPI
itanium	itanium	*	no	no	yes	yes	no
itanium2	itanium 2	*	no	no	yes	yes	yes
monticeto	itanium 2	?	no	no	yes	yes	yes

MIPS

Name	perf_event	perfctr	libpfm3¹	libpfm4	PAPI
R10000	2.6.37	no	yes	yes	no
R12000	no	no	yes	yes	no
RM7000	?	no	yes	yes	no
RM9000	?	no	yes	yes	no
SB1	2.6.37	no	yes	yes	no
VR5432	?	no	yes	yes	no
VR5500	?	no	yes	yes	no
20Kc	?	no	yes	yes	no²
24K	2.6.37	no	yes	yes	no
25Kf	?	no	yes	yes	no²
34K	2.6.37	no	yes	yes	no²
5Kc	?	no	yes	yes	no²
74K	2.6.37³	no	yes	yes	yes
1004K	2.6.37	no	no	no	no
Octeon	3.0?	no	no	no	no
SciCortex	?	no	yes	yes	no²

Notes:

As shipped with PAPI
Support removed in PAPI 4.0
You really should be running a newer kernel, and multiplexing is still broken as of kernel 3.1. There are limitations with the MIPS implementation having to do with sched_clock() not being implemented.

POWER

Name	perf_event	perfctr	libpfm3²	libpfm4	PAPI
PPC604	no	yes	no	no	no¹
PPC750 (G3)	no	yes	no	no	no
PPC7400 (G4)	2.6.31	yes	no	no	no
PPC970 (G5)	2.6.31	no	yes	yes	yes
e500	2.6.34	no	no	no	no
Cell	???	no	yes	yes	yes
POWER3	no	no	no	no	no¹
POWER4	2.6.31	yes ³	yes	yes	no¹
POWER5	2.6.31	yes³	yes	yes	yes
POWER5+	2.6.31	no	yes	yes	yes
POWER6	2.6.31	no	yes	yes	yes
POWER7	2.6.31	no	yes	yes	yes
POWER8	3.10	no	no	yes	yes
POWER9	4.8	no	no	yes	yes

Notes:

Support existed but is now removed from PAPI
As shipped with PAPI
With the perfctr 2.7.x branch

S390

Name	perf_event	perfctr	libpfm3	libpfm4	PAPI
S390x	3.4	no	no	yes	no

SH

Name	perf_event	perfctr	libpfm3	libpfm4	PAPI
SH7750	2.6.33	no	no	no	no
SH4-A	2.6.33	no	no	no	no

SPARC

Name	perf_event	perfctr	libpfm3	libpfm4	PAPI
Ultra I,II	no	no	yes	yes	yes
Ultra III	2.6.32	no	yes	yes	yes
Ultra 4+	2.6.32	no	yes	yes	yes
Niagara	2.6.32	no	yes	yes	yes
Niagara 2	2.6.32	no	yes	yes	no

Last updated 3 June 2022

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