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Benchmarks: Excellent Power Efficiency With 5th Gen AMD EPYC Using amd-pstate & Power Profiles
The AMD EPYC 9005 'Turin' processors that launched last year offer excellent performance and power efficiency out-of-the-box.
Over the generic ACPI CPUFreq CPU frequency scaling driver, the AMD P-State driver is able to make more informed frequency/power selection and paired with Energy Performance Preference (EPP) hints that can be set by the user / server administrators, there is much greater power/performance control than with ACPI CPUFreq as is used by default on pre-6.13 kernels and prior generation AMD EPYC servers. Simply put, this transition from ACPI CPUFreq to AMD P-State can allow for greater performance and power efficiency when moving to a Linux 6.13+ kernel. amd-pstate powersave, EPP power- The AMD P-State default above but switching to a "power" Energy Performance Preference bias.
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