Thread (21 messages) 21 messages, 2 authors, 2021-02-15

[Bug 211305] schedutil selects low P-States on AMD EPYC with frequency invariance

From: <hidden>
Date: 2021-02-12 17:29:35

https://bugzilla.kernel.org/show_bug.cgi?id=211305

Matt McDonald (gardotd426@gmail.com) changed:

           What    |Removed                     |Added
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                 CC|                            |gardotd426@gmail.com
--- Comment #6 from Matt McDonald (gardotd426@gmail.com) ---
So, the replacement patch from Rafael causes Zen 3 frequency reporting to be
ALL jacked up. 

Before the patch, core frequencies in /proc/cpuinfo as well as using tools like
nmon seemed accurate. After testing Rafael's patch, my core frequencies are all
up around 6 GHz (!), and even external tools like Geekbench report my 5800X's
BASE clock as 6.0 GHz (https://browser.geekbench.com/v5/cpu/6466982)

I'm sure this isn't intended behavior. The patch was merged like yesterday into
the mainline kernel, so should I file an actual bug report?

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