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Linux 5.10.17 Backports CPUFreq Patches From 5.11 - Benchmarks

Submitted by Roy Schestowitz on Thursday 18th of February 2021 02:23:19 PM Filed under
Graphics/Benchmarks
Linux

Released yesterday was the Linux 5.10.17 LTS kernel and what makes this point release a bit more notable than usual is that it backports the CPUFreq patches from 5.11 that were used for addressing the earlier AMD performance regression on Linux 5.11 and often leading to net improvements as well over prior kernel series. The CPUFreq patches were back-ported while the AMD frequency invariance support was not, so what does the performance look like for the Linux 5.10 LTS kernel? Here are some benchmarks.

The newly-released Linux 5.10.17 kernel back-ported "cpufreq: ACPI: Extend frequency tables to cover boost frequencies" and "cpufreq: ACPI: Update arch scale-invariance max perf ratio if CPPC is not there". See this prior article for additional context but long story short these were the two patches to address the performance issue on Linux 5.11 when AMD frequency invariance was introduced for Zen 2 / Zen 3 and used when using the likes of the Schedutil governor.

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Also: Many Networking Improvements Routed To The Linux 5.12 Kernel

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