Hello. On pondělí 10. června 2024 12:07:45, SELČ Dhananjay Ugwekar wrote: > Currently the energy-cores event in the power PMU aggregates energy > consumption data at a package level. On the other hand the core energy > RAPL counter in AMD CPUs has a core scope (which means the energy > consumption is recorded separately for each core). Earlier efforts to add > the core event in the power PMU had failed [1], due to the difference in > the scope of these two events. Hence, there is a need for a new core scope > PMU. > > This patchset adds a new "power_per_core" PMU alongside the existing > "power" PMU, which will be responsible for collecting the new > "energy-per-core" event. > > Tested the package level and core level PMU counters with workloads > pinned to different CPUs. > > Results with workload pinned to CPU 1 in Core 1 on an AMD Zen4 Genoa > machine: > > $ perf stat -a --per-core -e power_per_core/energy-per-core/ sleep 1 > > Performance counter stats for 'system wide': > > S0-D0-C0 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C1 1 5.72 Joules power_per_core/energy-per-core/ > S0-D0-C2 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C3 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C4 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C5 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C6 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C7 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C8 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C9 1 0.02 Joules power_per_core/energy-per-core/ > S0-D0-C10 1 0.02 Joules power_per_core/energy-per-core/ > > [1]: > https://lore.kernel.org/lkml/[email protected]/ > > This patchset applies cleanly on top of v6.10-rc3 as well as latest > tip/master. > > Dhananjay Ugwekar (6): > perf/x86/rapl: Fix the energy-pkg event for AMD CPUs > perf/x86/rapl: Rename rapl_pmu variables > perf/x86/rapl: Make rapl_model struct global > perf/x86/rapl: Move cpumask variable to rapl_pmus struct > perf/x86/rapl: Add wrapper for online/offline functions > perf/x86/rapl: Add per-core energy counter support for AMD CPUs > > arch/x86/events/rapl.c | 311 ++++++++++++++++++++++++++++++----------- > 1 file changed, 233 insertions(+), 78 deletions(-) > >
With my CPU:
Model name: AMD Ryzen 9 5950X 16-Core Processor
and this workload:
$ taskset -c 1 dd if=/dev/zero of=/dev/null
the following result is got:
$ sudo perf stat -a --per-core -e power_per_core/energy-per-core/ sleep 1
Performance counter stats for 'system wide':
S0-D0-C0 1 1,70 Joules
power_per_core/energy-per-core/
S0-D0-C1 1 8,83 Joules
power_per_core/energy-per-core/
S0-D0-C2 1 0,17 Joules
power_per_core/energy-per-core/
S0-D0-C3 1 0,33 Joules
power_per_core/energy-per-core/
S0-D0-C4 1 0,14 Joules
power_per_core/energy-per-core/
S0-D0-C5 1 0,33 Joules
power_per_core/energy-per-core/
S0-D0-C6 1 0,25 Joules
power_per_core/energy-per-core/
S0-D0-C7 1 0,19 Joules
power_per_core/energy-per-core/
S0-D0-C8 1 0,66 Joules
power_per_core/energy-per-core/
S0-D0-C9 1 1,71 Joules
power_per_core/energy-per-core/
S0-D0-C10 1 0,38 Joules
power_per_core/energy-per-core/
S0-D0-C11 1 1,69 Joules
power_per_core/energy-per-core/
S0-D0-C12 1 0,22 Joules
power_per_core/energy-per-core/
S0-D0-C13 1 0,11 Joules
power_per_core/energy-per-core/
S0-D0-C14 1 0,49 Joules
power_per_core/energy-per-core/
S0-D0-C15 1 0,37 Joules
power_per_core/energy-per-core/
1,002409590 seconds time elapsed
If it is as expected, please add my:
Tested-by: Oleksandr Natalenko <[email protected]>
Thank you.
--
Oleksandr Natalenko (post-factum)
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