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tamdil
Beginner
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Does comet lake architecture support uncore pmu events?

Hello, I'm trying to get PMU counts of memory controller, to get information of CPU/GPU memory usage on integrated GPU systems.

Refer to the link, it seems that sky lake supports uncore events. However I cannot find corresponding events on the comet lake.

I tried these commands:

$perf stat -e uncore_imc/event=0xe7/
event syntax error: 'uncore_imc/event=0xe7/'
\___ Cannot find PMU 'uncore_imc'. Missing kernel support?

$ sudo perf list uncore
List of pre-defined events (to be used in -e):
$

$ ls /sys/bus/event_source/devices/
breakpoint cpu cstate_core cstate_pkg i915 intel_bts intel_pt kprobe msr software tracepoint uprobe

Also I used libpfm4 and there weren't events related.

I'm using ubuntu 20.04 and the kernel version is 5.4.0-72-generic.

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