Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.

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.

0 Kudos
0 Replies