How to get CXL PMU event sources in Linux(perf)?

[Shunyu]

Hi, I'm trying to profiling performance of cxl  type3 devices using CXL PMON mentioned in Xeon manual, but i can't see any cxl related event sources under /sys/bus/event_sources, so how to get performance data in perf?

Linux kernel is 6.5.0, ubuntu 22.04.

[ManoranjanDas]

Hello Shunyu,

Greetings for the day!

I hope this message finds you well.

We are following up to find out if you were able to find the information we provided. Please reply to confirm, so we can continue helping on a resolution. Looking forward to receiving your reply.

Regards,

Manoranjan.

[ManoranjanDas]

Hello Shunyu,

Greeting for the Day!

We are currently awaiting your response regarding the case. If you have any queries or require further assistance, please feel free to respond on the community post. We are more than happy to assist you.

Thank you for choosing Intel products and services.

Regards,

Manoranjan Das.

[ManoranjanDas]

Hello Shunyu,

Greetings for the day!

We would like to inform you that we are closing this request as no response has been received from our previous follow-ups. Please don't hesitate to ask any further questions in the future. Feel free to start a new conversation, as this thread will no longer be monitored.

Thank you for choosing Intel products and services.

Regards,

Manoranjan.

[pudding_art]

https://www.kernel.org/doc/html/latest/admin-guide/perf/cxl.html#cxl-performance-monitoring-unit-cpmu
 Maybe help.