Is there any PMC support for AMD EPYC?

Wicht, Baptiste bwicht at
Fri Jul 10 06:24:22 UTC 2020

Hi all, 

I am currently experimenting with an AMD EPYC 7302 processor on FreeBSD 12.1. 

I wanted to get information about some performance counters, but apparently, there is no PMU support for this CPU:

# pmcstat -L
pmcstat: pmu features not supported on host or hwpmc not loaded

I did kldload hwpmc already.

Is there any way to get PMC counters with this CPU on FreeBSD 12.1?



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