ACPI CPUfreq vs. Intel P-State Scaling With Linux 3.15

Filed under
Graphics/Benchmarks
Linux

For this weekend's Linux benchmarks we are looking at the performance of the Intel P-State and ACPI cpufreq drivers and comparing their scaling governor options when testing from an Intel Core i7 Extreme Edition system running with the Linux 3.15 development kernel.

Given that there's been renewed concerns recently about Intel's P-State driver causing odd performance problems and other performance issues related to the scaling governor, from the Linux 3.15 kernel this week I did some fresh tests of using both the intel_pstate and acpi_cpufreq drivers while also trying out their various scaling governor choices: performance, powersave, ondemand, conservative.

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