* Zhang Rui <rui.zhang@xxxxxxxxx> wrote: > Introduce four new perf software events > > PERF_COUNT_SW_PKG_ENERGY > PERF_COUNT_SW_CORE_ENERGY > PERF_COUNT_SW_UNCORE_ENERGY > and > PERF_COUNT_SW_DRAM_ENERGY > > To use it, users can run > perf stat -e pkg-energy foo > to get the package energy consumption when running foo. That's very interesting - being able to profile workloads by power/energy use looks like a *very* powerful feature. Are you allowed to show us some sample output of the data? What's the granularity of this info? Say what is the output of: perf stat -e pkg-energy -e core-energy -e uncore-energy -e dram-energy -a sleep 10 ? Also, have you tried something like: perf record -a -e pkg-energy sleep 60 perf report To see where most of the energy is used within a 1 minute interval? Also, conceptually these are really hardware events, right? Thanks, Ingo _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
