Radeon+Ryzen CPUFreq CPU Scaling Governor Benchmarks On Linux 4.15
Written by Michael Larabel in Linux Gaming on 7 January 2018. Page 4 of 4. 12 Comments

The Vulkan-only F1 2017 at 1080p led to noticeably better performance using the governor of the same name, especially with the minimum frame-rate being almost ten frames higher than ondemand and schedutil.

With Talos Principle there was virtually no difference in the results when changing the CPUfreq governor on this Ryzen desktop system.

And Xonotic ends out this latest CPUfreq testing with performance having a small advantage over ondemand/schedutil.

To no surprise, using the CPUfreq performance governor leads to the best frame-rates overall for Linux gaming on an AMD Ryzen system. But for those that have expressed optimism since the recent addition of the Schedutil governor to utilize the kernel's scheduler utilization data, with Linux 4.15 it's still not performing vastly different from the default ondemand governor. So that's where things stand today on the AMD side and I'll have similar Intel P-State/CPUfreq tests from the latest kernel shortly where it's a bit more interesting due to the greater scaling driver options available.

For those that may be new to the Linux scene, changing to the performance governor is generally as easy as running as root "echo performance > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor".

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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