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AMD P-state driver is too aggressive by default

Bug 217361 [email protected] 1 participant 4 messages Apr 23, 2023 1 message not in the archive

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#1 lore raw

https://bugzilla.kernel.org/show_bug.cgi?id=217361

Artem S. Tashkinov ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

          Component|Other                       |cpufreq
           Assignee|[email protected] |[email protected]
                   |sdl.org                     |
            Product|Drivers                     |Power Management
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#2 lore raw
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https://bugzilla.kernel.org/show_bug.cgi?id=217361

--- Comment #2 from [email protected] ---
(In reply to Artem S. Tashkinov from comment #1)

Quoted 1 line

You've not specified what issues you have and what it means "aggressive".

Sorry I should have explained better. CPU Frequency goes down to around 400MHz when using the AMD p-state driver as you can see in the info from cpupower. Running anything is slow and takes a long time. This isn't the case when using acpi_cpufreq.

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#3 lore raw
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https://bugzilla.kernel.org/show_bug.cgi?id=217361

Artem S. Tashkinov ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|NEEDINFO                    |REJECTED
         Resolution|---                         |INVALID

--- Comment #3 from Artem S. Tashkinov ([email protected]) --- You're using the "powersave" governor which keeps the CPU at the lowest performance at all times.

Please switch to ondemand or schedutil

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#4 lore raw
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https://bugzilla.kernel.org/show_bug.cgi?id=217361

--- Comment #4 from [email protected] ---
(In reply to Artem S. Tashkinov from comment #3)

Quoted 4 lines

You're using the "powersave" governor which keeps the CPU at the lowest performance at all times.

Please switch to ondemand or schedutil

Is this change intended then? Powersave mode in acpi_cpufreq wasn't this lowest. I'd like to save battery since I'm on a laptop.

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