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/3e766f0e-37d4-0f82-3868-31b14228868d@linux.intel.com/ > > 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 Thank you. -- Oleksandr Natalenko (post-factum)