Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH 0/2] turbostat: Improve support for AMD Zen CPUs (RAPL, CPUID) | Date | Wed, 18 Jul 2018 11:42:55 +0200 |
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On Wednesday, July 18, 2018 3:36:40 AM CEST Calvin Walton wrote: > Based on the documentation provided in AMD's Open-Source > Register Reference For AMD Family 17h Processors: > https://support.amd.com/TechDocs/56255_OSRR.pdf > > I've added support for reading Cores and Package energy usage from AMD's > "RAPL" MSRs. In order to correctly detect the AMD processor generation, > I've also had to update the CPUID code to handle AMD's extended family > field. > > Here's some example output from my (idle) Ryzen 3 2200G test system: > > turbostat version 17.06.23 - Len Brown <lenb@kernel.org> > CPUID(0): AuthenticAMD 13 CPUID levels; family:model:stepping 0x17:11:0 (23:17:0) > CPUID(1): SSE3 MONITOR - - - TSC MSR - - > CPUID(6): APERF, No-TURBO, No-DTS, No-PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, No-EPB > CPUID(7): No-SGX > RAPL: 364 sec. Joule Counter Range, at 180 Watts > cpu2: POLL: CPUIDLE CORE POLL IDLE > cpu2: C1: ACPI FFH INTEL MWAIT 0x0 > cpu2: C2: ACPI IOPORT 0x414 > cpu2: cpufreq driver: acpi-cpufreq > cpu2: cpufreq governor: schedutil > cpu0: MSR_RAPL_PWR_UNIT: 0x000a1003 (0.125000 Watts, 0.000015 Joules, 0.000977 sec.) > Core CPU Avg_MHz Busy% Bzy_MHz TSC_MHz IRQ C1 C2 C1% C2% CorWatt PkgWatt > - - 33 2.20 1485 3500 5073 1263 3694 2.75 95.12 0.03 3.29 > 0 0 33 2.20 1483 3500 1213 354 886 2.96 94.89 0.01 3.29 > 1 1 25 1.67 1474 3500 907 197 682 1.55 96.80 0.01 > 2 2 33 2.24 1478 3500 1674 450 1175 4.16 93.70 0.01 > 3 3 40 2.67 1501 3500 1279 262 951 2.33 95.07 0.01 > > > Calvin Walton (2): > turbostat: Read extended processor family from CPUID > turbostat: Add support for AMD Fam 17h (Zen) RAPL > > tools/power/x86/turbostat/turbostat.c | 184 ++++++++++++++++++++++---- > 1 file changed, 156 insertions(+), 28 deletions(-) > >
CC to linux-pm@vger.kernel.org pretty please!
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