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AMD EPYC Turin Power Profile Selection Impact On Performance & Efficiency
Last week I published an article looking at the power efficiency of 5th Gen AMD EPYC 'Turin' using the modern AMD P-State driver and the Power Profile options.
This motherboard unfortunately though with the current BIOS lacks ACPI CPPC support and thus is unable to run with the AMD P-State driver even when using the newest versions of the Linux kernel. The tested Power Profile Selection configurations paired with different ACPI CPUFreq governor options included: Again, these numbers are mainly being put out for reference purposes for those wondering about the impact of the Power Profile Selection either from the system BIOS or AMD HSMP utility for adjusting and this round was with the acpi-cpufreq driver.
Or read this on Phoronix