AMD Ryzen processors are getting a performance boost on Linux
AMD develops driver in collaboration with Valve
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Chip giantAMDhas shared details about a new driver that promises to improve the performance of its Zen-based processors onLinux.
According to reports, the new driver is the result of a joint collaboration betweenAMDandValve, with the two companies toiling to enhance performance and power efficiency reportedly in preparation for the launch of theSteam Deck, Valve’s Zen 2-based take onportable gaming.
Senior member of the technical staff at AMD, Rui (Ray) Huang hadposted patchesfor the new driver to the Linux kernel earlier this month, and shared more details about the work at the X.Org Developers Conference (XDC2021).
The drivers currently support processors powered by the Zen 3 microarchitecture, such as theRyzen 5000desktop processors, as well as theEpyc server processors, and will soon be extended to cover the entire Zen range.
In with the new
Digesting Huang’s presentation,Tom’s Hardwarenotes the new CPU driver started development when Valve found problems with the current Linux ACPI CPUFreq driver, particularly with games that relied on itsProtoncompatibility layer.
It then contacted AMD, and the two rolled up their sleeves to rework the older ACPI driver to take full advantage of the dexterity of the latest Zen processors. The result is the new CPPC driver, which according to Huang is capable of targeting any power state depending on its current workload.
Huang’s presentation revealed that in preliminary tests with aRyzen 7 5750G, the developers found that the new driver boosted Zen 3’s performance per watt by 10-25%.
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To compare the performance of the new driver with the older regime, Huang ranHorizon Zero Dawnon a Ryzen 7 Pro 5750G, locked to 60FPS. While the older driver could only bring the idle cores down to 3.8Ghz, the new driver managed to tune them all the way down to just 400Mhz.
ViaTom’s Hardware
With almost two decades of writing and reporting on Linux, Mayank Sharma would like everyone to think he’sTechRadar Pro’sexpert on the topic. Of course, he’s just as interested in other computing topics, particularly cybersecurity, cloud, containers, and coding.
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