perf --version
perf version 5.15.64
root# perf mem record -e list
failed: memory events not supported
Is AMD working to add DRAM bandwidth measurements to the perf tool?
When can we expect this support to land in a general release?
root# uname -a
Linux 5.15.0-56-generic #62-Ubuntu SMP Tue Nov 22 19:54:14 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
[CPU Info]
AMD Cpu : Yes
Family : 0x17
Model : 0x31
Stepping : 0x0
Local APIC : Yes
Socket Count : 2
SMT Enabled : No
Threads per Core : 1
Threads per CCX : 3
Threads per Package : 24
Total number of Threads : 48
[PERF Features Availability]
Core PMC : Yes
L3 PMC : Yes
DF PMC : Yes
PERF TS : No
[IBS Features Availability]
IBS : Yes
IBS Fetch Sampling : Yes
IBS OP Sampling : Yes
IBS FetchCtlExtd : Yes
IBS ExtCount : Yes
IBS Dispatch : Yes
IBS BrTgtAddr : Yes
IBS OpData4 : No
[RAPL/CEF Features Availability]
RAPL : Yes
APERF & MPERF : Yes
Read Only APERF & MPERF : Yes
IRPERF : Yes
HW P-State Control : Yes
[PERF features supported by OS]
TBP Supported : Yes
EBP Supported : Yes
IBS Supported : Yes
IRPERF Supported : Yes
APERF Supported : Yes
MPERF Supported : Yes
BPF Supported : No
BCC Installed : No
Perf Event Paranoid : 0
Perf Event Max Mlock : 516 KB
Perf Event Max Stack : 127
